This digital map shows the areal extent of surficial deposits and rock stratigraphic units (formations) as compiled by Trimble and Machette from 1973 to 1977 and published in 1979 under the Front Range Urban Corridor Geology Program. Trimble and Machette compiled their geologic map from published geologic maps and unpublished geologic mapping having varied map unit schemes. A convenient feature of the compiled map is its uniform classification of geologic units that mostly matches those of companion maps to the north (USGS I-855-G) and to the south (USGS I-857-F). Published as a color paper map, the Trimble and Machette map was intended for land-use planning in the Front Range Urban Corridor. This map recently (1997-1999) was digitized under the USGS Front Range Infrastructure Resources Project. In general, the mountainous areas in the western part of the map exhibit various igneous and metamorphic bedrock units of Precambrian age, major faults, and fault brecciation zones at the east margin (5-20 km wide) of the Front Range. The eastern and central parts of the map (Colorado Piedmont) depict a mantle of unconsolidated deposits of Quaternary age and interspersed outcroppings of Cretaceous or Tertiary-Cretaceous sedimentary bedrock. The Quaternary mantle comprises eolian deposits (quartz sand and silt), alluvium (gravel, sand, and silt of variable composition), colluvium, and a few landslides. At the mountain front, north-trending, dipping Paleozoic and Mesozoic sandstone, shale, and limestone bedrock formations form hogbacks and intervening valleys.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/i856H","usgsCitation":"Trimble, D.E., and Machette, M., 1979, Geologic map of the greater Denver area, Front Range urban corridor, Colorado (Version 1.1): U.S. Geological Survey IMAP 856, 37.65 x 35.68 inches, https://doi.org/10.3133/i856H.","productDescription":"37.65 x 35.68 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":6134,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/i-856-h/","linkFileType":{"id":5,"text":"html"}},{"id":189795,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":107013,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_9745.htm","linkFileType":{"id":5,"text":"html"},"description":"9745"}],"country":"United States","state":"Colorado","city":"Denver","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -105.36749999999999,39.3675 ], [ -105.36749999999999,40 ], [ -104.61749999999999,40 ], [ -104.61749999999999,39.3675 ], [ -105.36749999999999,39.3675 ] ] ] } } ] }","edition":"Version 1.1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae1e4b07f02db6886f6","contributors":{"authors":[{"text":"Trimble, Donald E.","contributorId":75910,"corporation":false,"usgs":true,"family":"Trimble","given":"Donald","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":275843,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Machette, Michael N.","contributorId":28963,"corporation":false,"usgs":true,"family":"Machette","given":"Michael N.","affiliations":[],"preferred":false,"id":275842,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":7339,"text":"ofr79231 - 1979 - Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee","interactions":[{"subject":{"id":7339,"text":"ofr79231 - 1979 - Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee","indexId":"ofr79231","publicationYear":"1979","noYear":false,"title":"Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee"},"predicate":"SUPERSEDED_BY","object":{"id":33343,"text":"b1552 - 1984 - Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee","indexId":"b1552","publicationYear":"1984","noYear":false,"title":"Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee"},"id":1}],"supersededBy":{"id":33343,"text":"b1552 - 1984 - Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee","indexId":"b1552","publicationYear":"1984","noYear":false,"title":"Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee"},"lastModifiedDate":"2025-12-29T14:14:30.541584","indexId":"ofr79231","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"79-231","title":"Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee","docAbstract":"The proposed Citico Creek Wilderness comprises about 5,670 hectares (56.7 km2) in the Cherokee National Forest south of the Little Tennessee River in easternmost Monroe County, Tennessee. Principal drainages are Citico Creek and Doublecamp Creek. Rocks of the study area include greenschist-facies arkosic metasandstone, metagraywacke, slate, and metaconglomerate of the Great Smoky Group of late Precambrian age. Minor deposits of unconsolidated Quaternary alluvium locally mantle the bedrock. Deformation is shown by asymmetric and overturned folds and by several major faults.
More than 500 sample s of soil, rock, and stream sediment were collected and analyzed for 31 major, minor, and trace elements by semiquantitative spectrographic, atomic absorption, and fire assay methods No significant metal anomalies were detected. Concentrations of Cu, Co, As, Pb, and Zn slightly higher than background are found within sulfidic parts of a distinctive stratigraphic unit composed of graphitic slate and metagraywacke. Pyrite and pyrrhotite are the chief sulfide minerals, with traces o f accessory sphalerite, chalcopyrite, galena, and arsenopyrite occurring as microscopic intergrowths. A reconnaissance ground radiometric survey and subsequent neutron activation analyses of selected radioactive rock samples show that the sulfidic parts of the graphitic slate unit have a relatively high content of Th and U, but are not potentially economic.
No metallic mineral resources appear to exist within the Citico Creek Wilderness Study Area. Resources of slate, silica, and stone are present, but they display no special qualities to differentiate them from other such material throughout the region. Ceramic evaluation tests on selected samples of slate indicate that the slate would have only marginal use for structural clay products such as brick and tile. Minor sand and gravel deposits occur along a few streams but are present in larger quantities and are more easily recovered in other areas.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr79231","usgsCitation":"Slack, J.F., Force, E.R., Behum, P., and Williams, B.B., 1979, Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee: U.S. Geological Survey Open-File Report 79-231, Report: iii, 33 p.; 2 Plates: 23.16 x 26.65 inches and 27.66 x 37.38 inches, https://doi.org/10.3133/ofr79231.","productDescription":"Report: iii, 33 p.; 2 Plates: 23.16 x 26.65 inches and 27.66 x 37.38 inches","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":498086,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0231/plate-1-2.pdf","text":"Plate 1-2","linkFileType":{"id":1,"text":"pdf"}},{"id":498085,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0231/plate-1-1.pdf","text":"Plate 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R.","contributorId":28235,"corporation":false,"usgs":true,"family":"Force","given":"E.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":155307,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Behum, P. T.","contributorId":62583,"corporation":false,"usgs":true,"family":"Behum","given":"P. T.","affiliations":[],"preferred":false,"id":155308,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Williams, B. B.","contributorId":106488,"corporation":false,"usgs":true,"family":"Williams","given":"B.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":155309,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":57135,"text":"ofr79576R - 1979 - Preliminary map of chromite provinces in the conterminous United States","interactions":[],"lastModifiedDate":"2018-11-05T10:14:40","indexId":"ofr79576R","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"79-576","chapter":"R","title":"Preliminary map of chromite provinces in the conterminous United States","language":"ENGLISH","doi":"10.3133/ofr79576R","usgsCitation":"Thayer, T.P., and Lipin, B., 1979, Preliminary map of chromite provinces in the conterminous United States: U.S. Geological Survey Open-File Report 79-576, 1 over-size sheet, scale 1:5,000,000, https://doi.org/10.3133/ofr79576R.","productDescription":"1 over-size sheet, scale 1:5,000,000","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":174832,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":100607,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0576r/plate-1.pdf","size":"6621","linkFileType":{"id":1,"text":"pdf"}}],"scale":"500000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ab0e4b07f02db66d89e","contributors":{"authors":[{"text":"Thayer, T. P.","contributorId":64629,"corporation":false,"usgs":true,"family":"Thayer","given":"T.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":256284,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lipin, B. R.","contributorId":61031,"corporation":false,"usgs":true,"family":"Lipin","given":"B. R.","affiliations":[],"preferred":false,"id":256283,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":44540,"text":"wri7935 - 1979 - Map showing occurrences of spring-deposited travertine in the conterminous Western United States","interactions":[],"lastModifiedDate":"2012-03-02T17:16:06","indexId":"wri7935","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"79-35","title":"Map showing occurrences of spring-deposited travertine in the conterminous Western United States","docAbstract":"Extinct travertine terraces occur hundreds of meters above present levels of spring activity and have potentials for interpretation of ancient hydrologic systems, rates of downcutting, or rates of tectonic uplift that remain virtually unexploited. The abundance and size of extinct travertine deposits suggest that in many places, such as pinnacles at the southwest end of the Searles Lake basin, California, spring activity was once more widespread and copious than it is now. Travertine of Eocene age has been reported, and a scattering of later Tertiary occurrences is known. But where age has been inferred, the inferred ages are predominantly Pleistocene or younger. So travertine seems to be a geologically transient phenomenon, subject either to removal by erosion or to burial and disappearance. Many travertine deposits are known to be on or close to faults. Their occurrence in otherwise structurally featureless alluvial valleys may, therefore, suggest the possibility of a hidden fault. From the Front Range to the Pacific, more than 300 travertime deposits have been identified. The map shows that the deposits are widely dispersed. However, there are apparent groupings on the Wasatch Fault and associated tectonic areas trending northward in Utah and southern Idaho, and also near the great fault zone that marks the eastern boundary of the Sierra Nevada, California. (Lantz-PTT)","language":"ENGLISH","doi":"10.3133/wri7935","usgsCitation":"Feth, J.H., and Barnes, I., 1979, Map showing occurrences of spring-deposited travertine in the conterminous Western United States: U.S. Geological Survey Water-Resources Investigations Report 79-35, 1 map : col. ; 88 x 78 cm., on sheet 106 x 122 cm., folded to 27 x 21 cm.; Scale 1:2,500,000 (W 125 p0 s--W 105 p0 s/N 49 p0 s--N 32 p0 s) , https://doi.org/10.3133/wri7935.","productDescription":"1 map : col. ; 88 x 78 cm., on sheet 106 x 122 cm., folded to 27 x 21 cm.; Scale 1:2,500,000 (W 125 p0 s--W 105 p0 s/N 49 p0 s--N 32 p0 s) ","costCenters":[],"links":[{"id":134861,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":81926,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1979/0035/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":81927,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1979/0035/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"250000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8ee4b07f02db6549af","contributors":{"authors":[{"text":"Feth, J. H.","contributorId":50495,"corporation":false,"usgs":true,"family":"Feth","given":"J.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":229966,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barnes, Ivan","contributorId":56619,"corporation":false,"usgs":true,"family":"Barnes","given":"Ivan","email":"","affiliations":[],"preferred":false,"id":229967,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":44542,"text":"wri7972 - 1979 - Ground-water availability in parts of the Chicopee and Mill River basins, near Wilbraham, Massachusetts","interactions":[],"lastModifiedDate":"2019-08-05T12:29:24","indexId":"wri7972","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"79-72","title":"Ground-water availability in parts of the Chicopee and Mill River basins, near Wilbraham, Massachusetts","docAbstract":"Ground water in the Wilbraham area occurs in glacial drift and in underlying bedrock. Stratified sand and gravel deposits form the principal unconsolidated aquifers. These aquifers are generally less than 50 feet thick in most of the study area; however, an area in north-central Wilbraham, near the Chicopee River, is underlain by stratified drift deposits more than 200 feet thick that may be capable of yielding more than 300 gal/min (gallons per minute) to individual wells. Bedrock aquifers are generally of two types: Triassic and Jurassic sedimentary rock lies west of a north-south trending fault, and Paleozoic metamorphic, and igneous rock lies east of the fault. The median yield of wells in sedimentary bedrock is 15 gal/min; yields range from 2 to 110 gal/min. The median yield of wells in crystalline rock is 5 gal/min; yields range from less than 1 to 60 gal/min. (Woodard-USGS)","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri7972","usgsCitation":"Delaney, D.F., 1979, Ground-water availability in parts of the Chicopee and Mill River basins, near Wilbraham, Massachusetts: U.S. Geological Survey Water-Resources Investigations Report 79-72, 1 Plate: 24.72 x 38.34 inches, https://doi.org/10.3133/wri7972.","productDescription":"1 Plate: 24.72 x 38.34 inches","costCenters":[],"links":[{"id":134594,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1979/0072/report-thumb.jpg"},{"id":366269,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1979/0072/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"24000","country":"United States","state":"Massachusetts","city":"Wilbraham","otherGeospatial":"Chicopee and Mill River basins","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -72.45414733886719,\n 42.109939567658415\n ],\n [\n -72.40676879882812,\n 42.109939567658415\n ],\n [\n -72.40676879882812,\n 42.13693172716147\n ],\n [\n -72.45414733886719,\n 42.13693172716147\n ],\n [\n -72.45414733886719,\n 42.109939567658415\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aafe4b07f02db66d39e","contributors":{"authors":[{"text":"Delaney, David F.","contributorId":41797,"corporation":false,"usgs":false,"family":"Delaney","given":"David","email":"","middleInitial":"F.","affiliations":[{"id":27261,"text":"U.S. Army Construction Engineering Research Laboratory, Champaig","active":true,"usgs":false}],"preferred":false,"id":229969,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":48464,"text":"ofr79920 - 1979 - Preconstruction and postconstruction ground-water levels, Lock and Dam 3, Red River Valley, Louisiana","interactions":[],"lastModifiedDate":"2013-12-13T10:21:23","indexId":"ofr79920","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"79-920","title":"Preconstruction and postconstruction ground-water levels, Lock and Dam 3, Red River Valley, Louisiana","docAbstract":"Proposed construction of a series of locks and dams in the Red River in Louisiana will cause a permanent increase in average river stage. The potentiometric surface of the shallow alluvial aquifer and the water table in the fine-grained material confining the aquifer will be affected. The purpose of this study, using digital-modeling techniques, was to predict the average postconstruction potentiometric surface (steady state) and the water table (nonsteady state) so that potential effects of the water-level changes could be evaluated. Plans for lock and dam 3 at realined mile 111 (kilometer 179) above the mouth of the Red River call for a pool elevation of 87 feet (27 meters) and will cause an average increase in river stage ranging from 21 to 3.5 feet (l.4 to 1.1 meters). As a result, ground-water levels will be raised to near land surface in low areas east of the river from the damsite to Aloha and in a 0.5-mile (0.8-kilometer) strip along the west side extending 9 miles (14 kilometers) above the dam. The potentiometric surface may be above land surface locally near the dam. The magnitude of ground-water-level fluctuations near the river will be reduced to less than half the preconstruction range.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr79920","collaboration":"Prepared by the U.S. Geological Survey in cooperation with the Soil Conservation Service and U.S. Army Corps of Engineers","usgsCitation":"Ludwig, A.H., and Terry, J.E., 1979, Preconstruction and postconstruction ground-water levels, Lock and Dam 3, Red River Valley, Louisiana: U.S. Geological Survey Open-File Report 79-920, 6 Plates: 32.84 x 42.30 inches and smaller, https://doi.org/10.3133/ofr79920.","productDescription":"6 Plates: 32.84 x 42.30 inches and smaller","costCenters":[],"links":[{"id":170079,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1979/0920/report-thumb.jpg"},{"id":279441,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0920/plate-2.pdf"},{"id":279442,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0920/plate-3.pdf"},{"id":279444,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0920/plate-5.pdf"},{"id":279445,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0920/plate-6.pdf"},{"id":279443,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0920/plate-4.pdf"},{"id":279440,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0920/plate-1.pdf"}],"scale":"62500","country":"United States","state":"Louisiana","otherGeospatial":"Red River Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -93.083333,31.333333 ], [ -93.083333,31.916667 ], [ -92.666667,31.916667 ], [ -92.666667,31.333333 ], [ -93.083333,31.333333 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abde4b07f02db67431b","contributors":{"authors":[{"text":"Ludwig, A. H.","contributorId":63007,"corporation":false,"usgs":true,"family":"Ludwig","given":"A.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":237575,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Terry, J. E.","contributorId":87930,"corporation":false,"usgs":true,"family":"Terry","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":237576,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":48465,"text":"ofr79921 - 1979 - Preconstruction and postconstruction ground-water levels, Lock and Dam 4, Red River Valley, Louisiana","interactions":[],"lastModifiedDate":"2013-12-12T15:55:18","indexId":"ofr79921","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"79-921","title":"Preconstruction and postconstruction ground-water levels, Lock and Dam 4, Red River Valley, Louisiana","docAbstract":"Proposed construction of a series of locks and dams in the Red River in Louisiana will cause a permanent increase in average river stage. The potentiometric surface of the shallow alluvial aquifer and the water table in the fine-grained material confining the aquifer will be affected. The purpose of this study, using digital-modeling techniques, was to predict the average postconstruction potentiometric surface (steady state) and the water table (nonsteady state) so that potential effects of the water-level changes could be evaluated. Plans for lock and dam 4 at realined mile 154 (kilometer 250) above the mouth of the Red River call for a pool elevation of 115 feet (35 meters) and will cause an average increase in river stage ranging from 24 to 4.5 feet (7 to 1.4 meters). As a result, ground-water levels will be raised 1 foot (0.3 meter) or more between the Red River and Bayou Pierre from the dam to Coushatta , and below Campti, east of the river. The potentiometric surface may be at or near land surface in low areas between the Red River and Bayou Pierre, and above land surface locally upstream from the dam. The magnitude of ground-water-level fluctuations near the river will be reduced to less than half the present range.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Barton Rouge, LA","doi":"10.3133/ofr79921","collaboration":"Prepared in cooperation with the U.S. Army Corps of Engineers and the U.S. Soil Conservation Service","usgsCitation":"Ludwig, A.H., and Reed, J., 1979, Preconstruction and postconstruction ground-water levels, Lock and Dam 4, Red River Valley, Louisiana: U.S. Geological Survey Open-File Report 79-921, Report: v, 22 p.; 6 Plates: 39.49 x 39.10 inches and smaller, https://doi.org/10.3133/ofr79921.","productDescription":"Report: v, 22 p.; 6 Plates: 39.49 x 39.10 inches and smaller","numberOfPages":"28","costCenters":[],"links":[{"id":170080,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1979/0921/report-thumb.jpg"},{"id":279434,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0921/plate-1.pdf"},{"id":279435,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0921/plate-2.pdf"},{"id":279436,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0921/plate-3.pdf"},{"id":279437,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0921/plate-4.pdf"},{"id":279438,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0921/plate-5.pdf"},{"id":279439,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0921/plate-6.pdf"},{"id":275875,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1979/0921/report.pdf"}],"scale":"62500","country":"United States","state":"Louisiana","otherGeospatial":"Red River Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -93.666667,31.75 ], [ -93.666667,32.25 ], [ -93.0,32.25 ], [ -93.0,31.75 ], [ -93.666667,31.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67ca75","contributors":{"authors":[{"text":"Ludwig, A. 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The potentiometric surface of the shallow alluvial aquifer and the water table in the fine-grained material confining the aquifer will be affected. The purpose of this study, using digital-modeling techniques, was to predict the average postconstruction potentiometric surface (steady state) and the water table (nonsteady state) so that potential effects of the water-level changes could be evaluated. Plans for lock and dam 5 at mile 243 (kilometer 390) above the mouth of the Red River call for a pool elevation of 145 feet (44 meters) and will cause an average increase in river stage of 23 feet (7.0 meters). As a result, ground-water levels in the pool area will be raised to near land surface in much of the area between the river and Bayou Pierre and as much as 2 miles (3.2 kilometers) east of the river from the dam upstream to realined mile 220 (kilometer 350). Areas of Barksdale Air Force Base where levels are now near land surface would be enlarged and extend downstream along Flat River to near Curtis. The potentiometric surface may be above land surface near Howard, Anderson Island, and Dixie Gardens. (Woodard-USGS)","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Baton Rouge, LA","doi":"10.3133/ofr79922","collaboration":"Prepared in cooperation with the U.S. Army Corps of Engineers and the U.S. Soil Conservation Service","usgsCitation":"Ludwig, A.H., and Terry, J.E., 1979, Preconstruction and postconstruction ground-water levels, Lock and Dam 5 and 6, Red River Valley, Louisiana: U.S. Geological Survey Open-File Report 79-922, Report: v, 24 p.; 4 Plates: 31.71 x 40.60 inches and smaller, https://doi.org/10.3133/ofr79922.","productDescription":"Report: v, 24 p.; 4 Plates: 31.71 x 40.60 inches and smaller","numberOfPages":"30","costCenters":[],"links":[{"id":279430,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0922/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":279431,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0922/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":170145,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1979/0922/report-thumb.jpg"},{"id":279432,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0922/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":406348,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_30420.htm","linkFileType":{"id":5,"text":"html"}},{"id":279433,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0922/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":275874,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1979/0922/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"62500","country":"United States","state":"Louisiana","otherGeospatial":"Red River Valley","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -93.85,\n 32.117\n ],\n [\n -93.408,\n 32.117\n ],\n [\n -93.408,\n 32.642\n ],\n [\n -93.85,\n 32.642\n ],\n [\n -93.85,\n 32.117\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b06e4b07f02db69a19f","contributors":{"authors":[{"text":"Ludwig, A. 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E.","contributorId":87930,"corporation":false,"usgs":true,"family":"Terry","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":237580,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":47084,"text":"ofr79307 - 1979 - Federal coal resource occurrence and federal coal development potential maps of the Stilger East quadrangle, Muskogee and Haskell Counties, Oklahoma","interactions":[],"lastModifiedDate":"2021-12-17T19:45:35.339076","indexId":"ofr79307","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"79-307","title":"Federal coal resource occurrence and federal coal development potential maps of the Stilger East quadrangle, Muskogee and Haskell Counties, Oklahoma","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr79307","usgsCitation":"Brady, B., 1979, Federal coal resource occurrence and federal coal development potential maps of the Stilger East quadrangle, Muskogee and Haskell Counties, Oklahoma: U.S. Geological Survey Open-File Report 79-307, Report: ii, 36 p.; 11 Plates: 30.15 × 23.65 inches or smaller, https://doi.org/10.3133/ofr79307.","productDescription":"Report: ii, 36 p.; 11 Plates: 30.15 × 23.65 inches or smaller","costCenters":[],"links":[{"id":84069,"rank":404,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-05.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84068,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-04.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84067,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-03.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84066,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-02.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":392140,"rank":14,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_28277.htm"},{"id":84076,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1979/0307/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84075,"rank":410,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-11.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84074,"rank":409,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-10.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84073,"rank":408,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-09.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84072,"rank":407,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-08.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84071,"rank":406,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-07.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84070,"rank":405,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-06.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84065,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0307/plate-01.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":135559,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1979/0307/report-thumb.jpg"}],"country":"United States","state":"Oklahoma","county":"Haskell County, Muskogee County","otherGeospatial":"Stilger East quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -95.125,\n 35.25\n ],\n [\n -95,\n 35.25\n ],\n [\n -95,\n 35.375\n ],\n [\n -95.125,\n 35.375\n ],\n [\n -95.125,\n 35.25\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fde4b07f02db5f5fd6","contributors":{"authors":[{"text":"Brady, Bruce T.","contributorId":8059,"corporation":false,"usgs":true,"family":"Brady","given":"Bruce T.","affiliations":[],"preferred":false,"id":234606,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":46840,"text":"ofr79669 - 1979 - Geologic map of the Lava Ridge-Hells Half Acre area, eastern Snake River plain, Idaho","interactions":[],"lastModifiedDate":"2023-03-08T20:58:52.49429","indexId":"ofr79669","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"79-669","title":"Geologic map of the Lava Ridge-Hells Half Acre area, eastern Snake River plain, Idaho","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr79669","usgsCitation":"Kuntz, M., Scott, W.E., Skipp, B., Hait, M.H., Embree, G.F., Hoggan, R.D., and Williams, E.J., 1979, Geologic map of the Lava Ridge-Hells Half Acre area, eastern Snake River plain, Idaho: U.S. Geological Survey Open-File Report 79-669, 1 Plate: 40.00 x 60.00 inches, https://doi.org/10.3133/ofr79669.","productDescription":"1 Plate: 40.00 x 60.00 inches","costCenters":[],"links":[{"id":99818,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/0669/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":413887,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_11337.htm","linkFileType":{"id":5,"text":"html"}},{"id":168814,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Idaho","otherGeospatial":"Lava Ridge-Hells Half Acre area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -113.125,\n 44.125\n ],\n [\n -113.125,\n 42.375\n ],\n [\n -112.25,\n 42.375\n ],\n [\n -112.25,\n 44.125\n ],\n [\n -113.125,\n 44.125\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afde4b07f02db696ff7","contributors":{"authors":[{"text":"Kuntz, Mel A. 0000-0001-8828-5474","orcid":"https://orcid.org/0000-0001-8828-5474","contributorId":6446,"corporation":false,"usgs":true,"family":"Kuntz","given":"Mel A.","affiliations":[],"preferred":false,"id":234172,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, W. E.","contributorId":22773,"corporation":false,"usgs":true,"family":"Scott","given":"W.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":234174,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Skipp, Betty","contributorId":51268,"corporation":false,"usgs":true,"family":"Skipp","given":"Betty","affiliations":[],"preferred":false,"id":234175,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hait, M. H. Jr.","contributorId":53451,"corporation":false,"usgs":true,"family":"Hait","given":"M.","suffix":"Jr.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":234176,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Embree, G. F.","contributorId":85236,"corporation":false,"usgs":true,"family":"Embree","given":"G.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":234177,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hoggan, R. 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J.","contributorId":8540,"corporation":false,"usgs":true,"family":"Williams","given":"E.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":234173,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":46589,"text":"ofr791071 - 1979 - Generalized thickness of the surficial deposits above the confining bed overlying the Floridan Aquifer, Southwest Florida Water Management District","interactions":[],"lastModifiedDate":"2022-07-08T18:21:21.235565","indexId":"ofr791071","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"79-1071","title":"Generalized thickness of the surficial deposits above the confining bed overlying the Floridan Aquifer, Southwest Florida Water Management District","docAbstract":"This map report presents the thickness of the surficial deposits overlying the upper confining bed of the Floridan aquifer in the Southwest Florida Water Management District. The surficial deposits range in thickness from less than 25 feet in the western part of the district to greater than 250 feet in the eastern part. The surficial deposits include sand, clayey sand, shell, and shelly marl that occur in the Holocene sand, Pleistocene marine terrace sand, and unconsolidated parts of the Fort Thompson Formation, Caloosahatchee Marl, Alachua Formation, and Bone Valley Formation. Lithologic logs and information from quarries were used in conjunction with an unpublished map prepared during an earlier investigation to compile this map at 1:250,000 scale. (Kosco-USGS)","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr791071","usgsCitation":"Wolansky, R., Spechler, R., and Buono, A., 1979, Generalized thickness of the surficial deposits above the confining bed overlying the Floridan Aquifer, Southwest Florida Water Management District: U.S. Geological Survey Open-File Report 79-1071, 1 Plate: 16.53 × 32.47 inches, https://doi.org/10.3133/ofr791071.","productDescription":"1 Plate: 16.53 × 32.47 inches","costCenters":[],"links":[{"id":173738,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":403283,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_39598.htm","linkFileType":{"id":5,"text":"html"}},{"id":83530,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/1071/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Florida","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -83.990478515625,\n 26.8730809659384\n ],\n [\n -81.36474609375,\n 26.8730809659384\n ],\n [\n -81.36474609375,\n 29.92637417863576\n ],\n [\n -83.990478515625,\n 29.92637417863576\n ],\n [\n -83.990478515625,\n 26.8730809659384\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6aebef","contributors":{"authors":[{"text":"Wolansky, R. 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(Kosco-USGS)","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr791298","usgsCitation":"Faughn, J.C., 1979, Map of Antelope Valley-East Kern Water Agency area, California, showing well density in ground-water subunits and areas: U.S. Geological Survey Open-File Report 79-1298, 1 Plate: 41.00 × 41.00 inches, https://doi.org/10.3133/ofr791298.","productDescription":"1 Plate: 41.00 × 41.00 inches","costCenters":[],"links":[{"id":168290,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":390145,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_62064.htm"},{"id":99685,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/1298/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"California","otherGeospatial":"Antelope Valley - East Kern Water Agency area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -118.8558,\n 34.4097\n ],\n [\n -117.625,\n 34.4097\n ],\n [\n -117.625,\n 35.3597\n ],\n [\n -118.8558,\n 35.3597\n ],\n [\n -118.8558,\n 34.4097\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67b3ed","contributors":{"authors":[{"text":"Faughn, Judith C.","contributorId":25991,"corporation":false,"usgs":true,"family":"Faughn","given":"Judith","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":233193,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":61379,"text":"mf1001A - 1979 - Structure contour map of buried Precambrian basement-rock surface, eastern part of the Rolla 1° x 2° quadrangle and adjacent areas, Missouri","interactions":[],"lastModifiedDate":"2021-10-26T18:34:30.464627","indexId":"mf1001A","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1001","chapter":"A","title":"Structure contour map of buried Precambrian basement-rock surface, eastern part of the Rolla 1° x 2° quadrangle and adjacent areas, Missouri","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1001A","usgsCitation":"Kisvarsanyi, E.B., 1979, Structure contour map of buried Precambrian basement-rock surface, eastern part of the Rolla 1° x 2° quadrangle and adjacent areas, Missouri: U.S. Geological Survey Miscellaneous Field Studies Map 1001, 1 Plate: 41.17 × 56.83 inches, https://doi.org/10.3133/mf1001A.","productDescription":"1 Plate: 41.17 × 56.83 inches","costCenters":[],"links":[{"id":179724,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":276314,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1001a/plate-1.pdf"},{"id":390971,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6352.htm"}],"scale":"25000","country":"United States","state":"Missouri","otherGeospatial":"Rolla 1° x 2° quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -92,36.75 ], [ -92,38.25 ], [ -90,38.25 ], [ -90,36.75 ], [ -92,36.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b12e4b07f02db6a284e","contributors":{"authors":[{"text":"Kisvarsanyi, E. B.","contributorId":62214,"corporation":false,"usgs":true,"family":"Kisvarsanyi","given":"E.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":265547,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":60290,"text":"mf1123 - 1979 - Maps showing coal resources of the Honaker Quadrangle, Russell, Tazewell, and Buchanan counties, Virginia","interactions":[],"lastModifiedDate":"2016-08-22T15:41:54","indexId":"mf1123","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1123","title":"Maps showing coal resources of the Honaker Quadrangle, Russell, Tazewell, and Buchanan counties, Virginia","docAbstract":"The Honaker quadrangle lies in two physiographic provinces. The northern half of the quadrangle is part of the Appalachian Plateaus province, where the coal-bearing formations of Pennsylvanian age are nearly flat lying or very gently dipping. Diagonally extending east-northeastward across the middle of the quadrangle are several belts of faulted, overturned, and steeply dipping rocks of Mississippian and Pennsylvanian age which are in the fault system that separates the Appalachian Plateaus from the Valley and Ridge provinces. Several belts of Pennsylvanian rocks in this area contain coal beds that are exposed at the surface. South of the faulted and overturned belts of Mississippian and Pennsylvanian rocks is an area of older faulted and folded noncoal-bearing rock formations, which are also part of the Appalachian Valley and Ridge province and which form much of the southern half of the Honaker quadrangle.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1123","usgsCitation":"Meissner, C.R., 1979, Maps showing coal resources of the Honaker Quadrangle, Russell, Tazewell, and Buchanan counties, Virginia: U.S. Geological Survey Miscellaneous Field Studies Map 1123, 33.85 x 36.68 inches, https://doi.org/10.3133/mf1123.","productDescription":"33.85 x 36.68 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":183108,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1123.PNG"},{"id":327346,"rank":1,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1123/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"250000","country":"United States","state":"Virginia","county":"Buchanan County, Russell County, Tazewell County","otherGeospatial":"Honaker Quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -82,37 ], [ -82,37.1175 ], [ -81.86749999999999,37.1175 ], [ -81.86749999999999,37 ], [ -82,37 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a17e4b07f02db6049f3","contributors":{"authors":[{"text":"Meissner, Charles R. Jr.","contributorId":28970,"corporation":false,"usgs":true,"family":"Meissner","given":"Charles","suffix":"Jr.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":263458,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":46260,"text":"ofr791517 - 1979 - Map showing lithostratigraphic and structural setting of stratabound (massive) sulfide deposits in the U.S. Appalachians","interactions":[],"lastModifiedDate":"2021-11-26T21:15:17.889268","indexId":"ofr791517","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"79-1517","title":"Map showing lithostratigraphic and structural setting of stratabound (massive) sulfide deposits in the U.S. Appalachians","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr791517","usgsCitation":"Gair, J.E., and Slack, J.F., 1979, Map showing lithostratigraphic and structural setting of stratabound (massive) sulfide deposits in the U.S. Appalachians: U.S. Geological Survey Open-File Report 79-1517, Report: 1 p.; 4 Plates: 50.00 × 44.00 inches or smaller, https://doi.org/10.3133/ofr791517.","productDescription":"Report: 1 p.; 4 Plates: 50.00 × 44.00 inches or smaller","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":392149,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_11169.htm"},{"id":83233,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1979/1517/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":172160,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1979/1517/report-thumb.jpg"},{"id":99666,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/1517/plate-1_sheet_4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":99665,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/1517/plate-1_sheet_3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":99664,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/1517/plate-1_sheet_2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":99663,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/1517/plate-1_sheet_1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","otherGeospatial":"Appalachians","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -86.484375,\n 32.54681317351514\n ],\n [\n -68.994140625,\n 32.54681317351514\n ],\n [\n -68.994140625,\n 46.49839225859763\n ],\n [\n -86.484375,\n 46.49839225859763\n ],\n [\n -86.484375,\n 32.54681317351514\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a19e4b07f02db605b5f","contributors":{"authors":[{"text":"Gair, Jacob Eugene","contributorId":14387,"corporation":false,"usgs":true,"family":"Gair","given":"Jacob","email":"","middleInitial":"Eugene","affiliations":[],"preferred":false,"id":232962,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Slack, John F. 0000-0001-6600-3130 jfslack@usgs.gov","orcid":"https://orcid.org/0000-0001-6600-3130","contributorId":1032,"corporation":false,"usgs":true,"family":"Slack","given":"John","email":"jfslack@usgs.gov","middleInitial":"F.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":232961,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":46246,"text":"ofr791488 - 1979 - Map showing ground-water conditions in the Bodaway Mesa area, Coconino County, Arizona: 1977","interactions":[],"lastModifiedDate":"2022-12-21T21:29:06.267281","indexId":"ofr791488","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"79-1488","title":"Map showing ground-water conditions in the Bodaway Mesa area, Coconino County, Arizona: 1977","docAbstract":"The Bodaway Mesa area includes about 800 square miles in north-central Arizona, and most of the area is in the Navajo Indian Reservation. Ground-water development has been slight; in 1977 the estimated ground-water withdrawal was less than 5 acre-feet. The Chinle Formation is the principal aquifer tapped by wells, and in places the Moenkopi Formation and the Redwall and Muav Limestones yield water to wells and springs. Water levels in the Chinle Formation are 15 to 200 feet below the land surface. The water from one well completed in the Petrified Forest Member of the Chinle Formation contained 1,210 milligrams per liter of dissolved solids; the dissolved-solids concentrations from two wells in the Shinarump Member of the Chinle were 1,000 and 1,110 milligrams per liter. Three wells penetrate the Moenkopi Formation, but only one yields water. One well obtains its water from the Redwall Limestone, and the water level is 2,200 feet below the land surface. About 60 cubic feet per second of water is discharged by springs that issue from the Redwall and Muav Limestones along the east wall of the canyon of the Little Colorado River. Information on the map includes depth to water, altitude of the water level, specific conductance, and fluoride concentrations. Scale 1:125,000.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr791488","usgsCitation":"Farrar, C.D., 1979, Map showing ground-water conditions in the Bodaway Mesa area, Coconino County, Arizona: 1977: U.S. Geological Survey Open-File Report 79-1488, 1 Plate: 25.25 × 39.19 inches, https://doi.org/10.3133/ofr791488.","productDescription":"1 Plate: 25.25 × 39.19 inches","costCenters":[],"links":[{"id":410892,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_11164.htm","linkFileType":{"id":5,"text":"html"}},{"id":83221,"rank":1,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1979/1488/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":170873,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Arizona","county":"Coconino County","otherGeospatial":"Bodaway Mesa area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -111.375,\n 36.864\n ],\n [\n -111.875,\n 36.864\n ],\n [\n -111.875,\n 35.892\n ],\n [\n -111.375,\n 35.892\n ],\n [\n -111.375,\n 36.864\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad9e4b07f02db68511b","contributors":{"authors":[{"text":"Farrar, C. D.","contributorId":71978,"corporation":false,"usgs":true,"family":"Farrar","given":"C.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":232938,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":59923,"text":"mf1001B - 1979 - Structure contour map of buried Precambrian basement-rock surface, eastern part of the Rolla 1° x 2° quadrangle and adjacent areas, Missouri","interactions":[],"lastModifiedDate":"2021-10-26T18:49:38.976068","indexId":"mf1001B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1001","chapter":"B","title":"Structure contour map of buried Precambrian basement-rock surface, eastern part of the Rolla 1° x 2° quadrangle and adjacent areas, Missouri","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1001B","usgsCitation":"Kisvarsanyi, E.B., 1979, Structure contour map of buried Precambrian basement-rock surface, eastern part of the Rolla 1° x 2° quadrangle and adjacent areas, Missouri: U.S. Geological Survey Miscellaneous Field Studies Map 1001, 1 Plate: 29.82 × 31.69 inches, https://doi.org/10.3133/mf1001B.","productDescription":"1 Plate: 29.82 × 31.69 inches","costCenters":[],"links":[{"id":180295,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":390972,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6353.htm"},{"id":276387,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1001b/plate-1.pdf"}],"scale":"250000","country":"United States","state":"Missouri","otherGeospatial":"Rolla 1° x 2° quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -92,36.75 ], [ -92,38.25 ], [ -90,38.25 ], [ -90,36.75 ], [ -92,36.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b12e4b07f02db6a2577","contributors":{"authors":[{"text":"Kisvarsanyi, E. B.","contributorId":62214,"corporation":false,"usgs":true,"family":"Kisvarsanyi","given":"E.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":262838,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":59314,"text":"mf1086 - 1979 - Geologic map and coal sections of the Forks Ranch quadrangle, Big Horn County, Montana","interactions":[],"lastModifiedDate":"2025-09-24T16:24:53.744495","indexId":"mf1086","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1086","title":"Geologic map and coal sections of the Forks Ranch quadrangle, Big Horn County, Montana","docAbstract":"The Forks Ranch quadrangle lies on the gently-dipping east flank of the Powder River basin, near its trough line.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1086","usgsCitation":"Culbertson, W., and Klett, M.C., 1979, Geologic map and coal sections of the Forks Ranch quadrangle, Big Horn County, Montana: U.S. Geological Survey Miscellaneous Field Studies Map 1086, 2 Plates: 48.40 x 28.04 and 46.33 x 41.44 inches, https://doi.org/10.3133/mf1086.","productDescription":"2 Plates: 48.40 x 28.04 and 46.33 x 41.44 inches","costCenters":[],"links":[{"id":496032,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6461.htm","linkFileType":{"id":5,"text":"html"}},{"id":278813,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1086/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":278814,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1086/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":184452,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1086/report-thumb.jpg"}],"scale":"24000","datum":"National Geodetic Vertical Datum of 1929","country":"United States","state":"Montana","county":"Big Horn County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -106.5,45.0 ], [ -106.5,45.125 ], [ -106.375,45.125 ], [ -106.375,45.0 ], [ -106.5,45.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a4c80","contributors":{"authors":[{"text":"Culbertson, William C.","contributorId":20730,"corporation":false,"usgs":true,"family":"Culbertson","given":"William C.","affiliations":[],"preferred":false,"id":261766,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Klett, Mark C.","contributorId":94743,"corporation":false,"usgs":true,"family":"Klett","given":"Mark","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":261767,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":59292,"text":"mf1100 - 1979 - Contour map of the base of the Pennsylvanian system, eastern Kentucky","interactions":[],"lastModifiedDate":"2025-03-21T14:21:26.893402","indexId":"mf1100","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1100","title":"Contour map of the base of the Pennsylvanian system, eastern Kentucky","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1100","usgsCitation":"Coskren, T., and Rice, C.L., 1979, Contour map of the base of the Pennsylvanian system, eastern Kentucky: U.S. Geological Survey Miscellaneous Field Studies Map 1100, 1 Plate: 53.88 x 44.50 inches, https://doi.org/10.3133/mf1100.","productDescription":"1 Plate: 53.88 x 44.50 inches","costCenters":[],"links":[{"id":183324,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1100/report-thumb.jpg"},{"id":483654,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1100/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"250000","country":"United States","state":"Kentucky","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -85,37 ], [ -85,38 ], [ -82,38 ], [ -82,37 ], [ -85,37 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699dc2","contributors":{"authors":[{"text":"Coskren, T.D.","contributorId":70058,"corporation":false,"usgs":true,"family":"Coskren","given":"T.D.","email":"","affiliations":[],"preferred":false,"id":261732,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rice, C. L.","contributorId":60658,"corporation":false,"usgs":true,"family":"Rice","given":"C.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":261731,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":68656,"text":"ha586 - 1979 - Water resources of the St. Louis River watershed, northeastern Minnesota","interactions":[{"subject":{"id":44068,"text":"ofr77608 - 1977 - Water resources of the St. Louis River watershed, northeastern Minnesota","indexId":"ofr77608","publicationYear":"1977","noYear":false,"title":"Water resources of the St. Louis River watershed, northeastern Minnesota"},"predicate":"SUPERSEDED_BY","object":{"id":68656,"text":"ha586 - 1979 - Water resources of the St. Louis River watershed, northeastern Minnesota","indexId":"ha586","publicationYear":"1979","noYear":false,"title":"Water resources of the St. Louis River watershed, northeastern Minnesota"},"id":1}],"lastModifiedDate":"2018-03-12T13:15:32","indexId":"ha586","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":318,"text":"Hydrologic Atlas","code":"HA","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"586","title":"Water resources of the St. Louis River watershed, northeastern Minnesota","docAbstract":"The St. Louis River is the largest tributary to Lake Superior in Minnesota. It drains a predominantly forested area of about 3,650 mi2 (Minnesota Department of Conservation, 1959) and discharges into the lake at Duluth.
\nThe Mesabi Iron Range, noted for rich deposits of iron ore, parallels much of the northern watershed boundary. Large areas of land were altered by mining activities, as seen on the Landsat-1 MSS 7 images for September 26, 19744 (No. 1795-16203). The northeastward-trending string of water bodies along the northern boundary are flooded mine pits and tailings basins. The northeastern part of the watershed is largely State and National forest, whereas much of the southwestern and central parts are peat-covered wetlands.
\nGeneralized topographic features are shown on the map above. The topographic high along the northern boundary includes the Iron Range and is dissected by post-glacial drainage. The most notable drainage gap is that occupied by the Embarrass River. The series of southwestward-trending elongate hills in the eastern part of the watershed, visible on both the Landsat image and the topographic map, is the Toimi Drumlin Field (Wright, 1972). Topographically low, relatively flat land in the southwestern and central parts is a glacial lake plain. St. Louis River gradients are highly variable, being 9 ft/mi from its headwaters to the mouth of Partridge River, slightly more than 1 ft/mi from Partridge River to Cloquet, and 35 to 40 ft/mi in a 15-mi reach below Cloquest.
\nThe watershed is sparsely settled except for its northern and south-eastern parts. About 80 percent of the urban population lives on the Iron Range. Most of the suburban and rural residents alro live on or near the range or in the southeastern part of the watershed. Total population (1970), exclusive of those in the city of Duluth, which is included in the Lake Superior watershed (Olcott and others, 1976), was about 117,000.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ha586","collaboration":"Prepared in cooperation with the Minnesota Department of Natural Resources, Division of Waters","usgsCitation":"Lindholm, G.F., Ericson, D., Broussard, W., and Hult, M.F., 1979, Water resources of the St. Louis River watershed, northeastern Minnesota: U.S. Geological Survey Hydrologic Atlas 586, 3 Plates: 54.0 x 39.5 inches or smaller, https://doi.org/10.3133/ha586.","productDescription":"3 Plates: 54.0 x 39.5 inches or smaller","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":392,"text":"Minnesota Water Science 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This area is one of the most seismically active regions in the eastern United States. In 1974, the U.S. Geological Survey initiated magnetic surveys to delineate major geologic or tectonic features that may be responsible for the geration or control of seismic energy.
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The equations were developed from regression analyses that used the logarithms of the longitude indexes of gaged sites, forest cover, and drainage areas of the upstream basins as independent variables and the logarithms of the discharges for selected exceedance-probabilities at the gaged sites were used as dependent variables. These equations may be used to estimate floodflows with probabilities of being exceeded in any year of 50, 20, 10, 4, 2, and 1 percent in natural-flow ephemeral streams that drain relatively undeveloped basins with areas and forest covers less than about 40 square miles and 30 percent, respectively. The standard errors of estimate for the equations range from 57 to 100 percent. Equations that use longitude index as a surrogate for a precipitation index more accurately estimate floods than do equations that use mean annual precipitation, which, in turn, are better than the equations that use the 24-hour precipitation with an exceedance probability of 50 percent. (Kosco-USGS)","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri7981","usgsCitation":"Haushild, W., 1979, Estimation of floods of various frequencies for the small ephemeral streams in eastern Washington: U.S. Geological Survey Water-Resources Investigations Report 79-81, iv, 22 p. , https://doi.org/10.3133/wri7981.","productDescription":"iv, 22 p. ","costCenters":[],"links":[{"id":158854,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1979/0081/report-thumb.jpg"},{"id":366254,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1979/0081/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Washington","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -125.9912109375,\n 45.61403741135093\n ],\n [\n -120.16845703125,\n 45.61403741135093\n ],\n [\n -120.16845703125,\n 49.03786794532644\n ],\n [\n -125.9912109375,\n 49.03786794532644\n ],\n [\n -125.9912109375,\n 45.61403741135093\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fbbea","contributors":{"authors":[{"text":"Haushild, W.L.","contributorId":48953,"corporation":false,"usgs":true,"family":"Haushild","given":"W.L.","affiliations":[],"preferred":false,"id":198366,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":3819,"text":"cir808 - 1979 - Background information to accompany folio of geologic, mineral resource, geochemical, aeromagnetic, and gravity maps of the Hillsboro and San Lorenzo quadrangles, Sierra and Grant Counties, New Mexico, with sections on geochemistry and geophysics","interactions":[],"lastModifiedDate":"2022-07-07T19:49:37.837055","indexId":"cir808","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"808","title":"Background information to accompany folio of geologic, mineral resource, geochemical, aeromagnetic, and gravity maps of the Hillsboro and San Lorenzo quadrangles, Sierra and Grant Counties, New Mexico, with sections on geochemistry and geophysics","docAbstract":"The Hillsboro and San Lorenzo 15-minute quadrangles of southwestern New Mexico have been mapped at a 1:48,000 scale and selected mineralized areas within these quadrangles have been mapped in greater detail. This area of about 550 mi2 (1,424 km2) is within the southern part of the Black Range and includes much of the Mimbres Mountains and parts of the adjoining Black Range Primitive area. The region is highly mineralized with Laramide (75.1 ? 2.5 m.y.) and middle Tertiary (about 32 to 35 m.y.) intrusions providing the source for much of the base- and precious-metal mineralization. The porphyry copper deposit at Copper Flat is a subvolcanic Laramide quartz monzonite stock that was intruded into a thick section (>2,700 ft or >823 m) of Upper Cretaceous andesite. Numerous gold-bearing veins radiate from the central quartz monzonite stock, and locally offset a radial system of quartz latite dikes. Gold-bearing veins, chiefly along the south and east periphery of the stock, have provided the source for both gold lode and placer deposits. The middle Tertiary rhyolitic plugs, stocks, and dikes have intruded a dominantly carbonate section of Paleozoic sediments and bedding replacement deposits of zinc, lead, and copper are closely associated with tactite in the Carpenter (Swartz) mining district. The rich oxidized silver deposits of the Kingston district are largely fault controlled and a metallizing pluton is not present at the surface outcrop. Some of the silver-bearing base-metal veins in the Kingston district contain rhodochrosite, rhodonite, and alabandite and the highly oxidized parts of these veins have been mined for manganese ore. Very minor amounts of tungsten, as scheelite, occur in thin tactite zones along Tank Canyon, at the Silver Queen claims near Kingston, and at the Silver Tail group of mines along Pierce Canyon.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/cir808","usgsCitation":"Hedlund, D.C., Watts, K.C., Alminas, H.V., and Wynn, J.C., 1979, Background information to accompany folio of geologic, mineral resource, geochemical, aeromagnetic, and gravity maps of the Hillsboro and San Lorenzo quadrangles, Sierra and Grant Counties, New Mexico, with sections on geochemistry and geophysics: U.S. Geological Survey Circular 808, iv, 26 p., https://doi.org/10.3133/cir808.","productDescription":"iv, 26 p.","costCenters":[],"links":[{"id":403222,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23580.htm","linkFileType":{"id":5,"text":"html"}},{"id":30889,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1979/0808/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":124543,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1979/0808/report-thumb.jpg"}],"country":"United States","state":"New Mexico","county":"Grant County, Sierra Couny","otherGeospatial":"Hillsboro and San Lorenzo quadrangles","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -108,\n 32.75\n ],\n [\n -107.5,\n 32.75\n ],\n [\n -107.5,\n 33\n ],\n [\n -108,\n 33\n ],\n [\n -108,\n 32.75\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a82e4b07f02db64ad9c","contributors":{"authors":[{"text":"Hedlund, David Carl","contributorId":53762,"corporation":false,"usgs":true,"family":"Hedlund","given":"David","email":"","middleInitial":"Carl","affiliations":[],"preferred":false,"id":147667,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Watts, K. C.","contributorId":49344,"corporation":false,"usgs":true,"family":"Watts","given":"K.","middleInitial":"C.","affiliations":[],"preferred":false,"id":147666,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alminas, Henry V.","contributorId":59783,"corporation":false,"usgs":true,"family":"Alminas","given":"Henry","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":147668,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wynn, Jeffrey C.","contributorId":81081,"corporation":false,"usgs":true,"family":"Wynn","given":"Jeffrey","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":147669,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":4228,"text":"cir783 - 1979 - The Alaskan Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Big Delta quadrangle, Alaska","interactions":[],"lastModifiedDate":"2021-10-28T21:08:43.149578","indexId":"cir783","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"783","title":"The Alaskan Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Big Delta quadrangle, Alaska","docAbstract":"The geology, geochemistry, geophysics, and Landsat imagery of the Big Delta quadrangle, 16,335 km 2 in the Yukon-Tanana Upland of east-central Alaska, were investigated, and maps and reports were prepared by an interdisciplinary research team for the purpose of assessing the mineral potential. The quadrangle is dominantly a complex terrane of greenschist- to amphibolitefacies metamorphic rocks that have been intruded by Mesozoic and Tertiary dioritic to granitic rocks and are overlain by Tertiary sedimentary and volcanic rocks. Serpentinized peridotite and associated greenstone, graywacke, and chert crop out in some places. \r\n\r\nThe quadrangle is bisected by the northeastward-trending Shaw Creek fault, which, on the basis of aeromagnetic interpretation and geologic data, is postulated to have left-lateral offset of as much as 48 km. On the northwest side of the Shaw Creek fault, metamorphic rock units have a northwesterly regional trend, and the oldest rocks could be Precambrian in age. Gneiss and schist in the southwestern part of the quadrangle are derived from both igneous and sedimentary protoliths, some of which may be as old as Precambrian. Other rock units, which include calcareous schist and thin-layered marble, black quartzite, semischist, and cataclastic rocks, are considered to be of probable Paleozoic age, although no fossils have yet been found in these rocks. Radiolarians and conodonts in chert associated with greenstone and ultramafic rocks indicate that the chert is of Permian age. \r\n\r\nPotassium-argon ages on igneous rocks of the Big Delta quadrangle fall into two groups: those with biotite, muscovite, hornblende, and sanidine ages between 50 to 69 m.y.; and those with biotite, hornblende, and sanidine ages between 88 to 105 m.y. The younger of these two groups appears to indicate the time of a plutonic event marked by intrusion of mostly small, isolated plutons, including hypabyssal stocks, and the eruption of silicic volcanic rocks. Most of the plutons are quartz monzonite to granite. \r\n\r\nThe older group of ages (88 to 105 m.y.) on igneous rocks includes ages on the largest plutons of the Yukono-Tanana Upland. The rocks range from diorite to quartz monzonite in composition. The potassium-argon ages on the metamorphic rocks of the Big Delta quadrangle, like those obtained elsewhere in the Yukon-Tanana Upland, appear to have been partly or completely reset by subsequent thermal events. \r\n\r\nVein and placer gold deposits have been mined in the Big Delta quadrangle, and although indications of mineralization are widespread, no other mineral deposits have yet been identified. The geologic, geochemical, and geophysical data are compatible with several types of deposits, including porphyry copper, massive sulfide, and skarn deposits. In certain aspects, the geology of the quadrangle is similar to areas in the eastern part of the Yukon-Tanana Upland and Canada where mineral deposits are known.","language":"English","publisher":"U.S. Geological Survey,","doi":"10.3133/cir783","usgsCitation":"Foster, H.L., Albert, N.R., Griscom, A., Hessin, T., Menzie, W., Turner, D.L., and Wilson, F.H., 1979, The Alaskan Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Big Delta quadrangle, Alaska: U.S. Geological Survey Circular 783, iii, 19 p., https://doi.org/10.3133/cir783.","productDescription":"iii, 19 p.","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":31342,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1979/0783/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":139243,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1979/0783/report-thumb.jpg"},{"id":391117,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23992.htm"}],"country":"United States","state":"Alaska","otherGeospatial":"Big Delta quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -147,\n 64\n ],\n [\n -144,\n 64\n ],\n [\n -144,\n 65\n ],\n [\n -147,\n 65\n ],\n [\n -147,\n 64\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b06e4b07f02db69a276","contributors":{"authors":[{"text":"Foster, Helen Laura","contributorId":21936,"corporation":false,"usgs":true,"family":"Foster","given":"Helen","email":"","middleInitial":"Laura","affiliations":[],"preferred":false,"id":148472,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Albert, N. R. D.","contributorId":63789,"corporation":false,"usgs":true,"family":"Albert","given":"N.","email":"","middleInitial":"R. D.","affiliations":[],"preferred":false,"id":148477,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Griscom, Andrew","contributorId":23520,"corporation":false,"usgs":true,"family":"Griscom","given":"Andrew","email":"","affiliations":[],"preferred":false,"id":148473,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hessin, T. D.","contributorId":42181,"corporation":false,"usgs":true,"family":"Hessin","given":"T. D.","affiliations":[],"preferred":false,"id":148474,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Menzie, W. D.","contributorId":52916,"corporation":false,"usgs":true,"family":"Menzie","given":"W. D.","affiliations":[],"preferred":false,"id":148475,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Turner, D. L.","contributorId":53776,"corporation":false,"usgs":true,"family":"Turner","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":148476,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wilson, Frederic H. 0000-0003-1761-6437 fwilson@usgs.gov","orcid":"https://orcid.org/0000-0003-1761-6437","contributorId":67174,"corporation":false,"usgs":true,"family":"Wilson","given":"Frederic","email":"fwilson@usgs.gov","middleInitial":"H.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":148471,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":4233,"text":"cir758 - 1979 - The Alaskan Mineral Resource Assessment Program: Guide to information contained in the folio of geologic and mineral resource maps of the Chandalar quadrangle, Alaska","interactions":[],"lastModifiedDate":"2021-10-28T21:20:35.184532","indexId":"cir758","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1979","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"758","title":"The Alaskan Mineral Resource Assessment Program: Guide to information contained in the folio of geologic and mineral resource maps of the Chandalar quadrangle, Alaska","docAbstract":"The Chandalar quadrangle in east-central Alaska was investigated by a multidisciplinary research group to assess the mineral resource potential of the quadrangle. This circular serves as a guide to and integrates with a folio of 10 miscellaneous field study (MF) maps and 2 open-file (OF) reports (table 1) concerned with the geology, geophysics, geochemistry, Landsat imagery, and mineral resources of the area. \r\n\r\nRevisions to the previously published Chandalar quadrangle geologic map, a new radiometric age determination, and a bibliography are also included.","language":"English","publisher":"U.S. Geological Survey,","doi":"10.3133/cir758","usgsCitation":"Reiser, H.N., Brosge, W., DeYoung, J.H., Marsh, S., Hamilton, T.D., Cady, J.W., and Albert, N.R., 1979, The Alaskan Mineral Resource Assessment Program: Guide to information contained in the folio of geologic and mineral resource maps of the Chandalar quadrangle, Alaska: U.S. Geological Survey Circular 758, iii, 23 p., https://doi.org/10.3133/cir758.","productDescription":"iii, 23 p.","costCenters":[],"links":[{"id":31347,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1979/0758/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":139314,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1979/0758/report-thumb.jpg"},{"id":391120,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23883.htm"}],"country":"United States","state":"Alaska","otherGeospatial":"Chandalar quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -150,\n 68\n ],\n [\n -147,\n 68\n ],\n [\n -147,\n 67\n ],\n [\n -150,\n 67\n ],\n [\n -150,\n 68\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db683460","contributors":{"authors":[{"text":"Reiser, H. N.","contributorId":13199,"corporation":false,"usgs":true,"family":"Reiser","given":"H.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":148503,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brosge, W. P.","contributorId":58248,"corporation":false,"usgs":true,"family":"Brosge","given":"W. P.","affiliations":[],"preferred":false,"id":148506,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"DeYoung, J. H.","contributorId":75908,"corporation":false,"usgs":true,"family":"DeYoung","given":"J.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":148508,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Marsh, S.P.","contributorId":32913,"corporation":false,"usgs":true,"family":"Marsh","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":148504,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hamilton, T. D.","contributorId":36921,"corporation":false,"usgs":true,"family":"Hamilton","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":148505,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cady, J. W.","contributorId":81892,"corporation":false,"usgs":true,"family":"Cady","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":148509,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Albert, N. R. D.","contributorId":63789,"corporation":false,"usgs":true,"family":"Albert","given":"N.","email":"","middleInitial":"R. D.","affiliations":[],"preferred":false,"id":148507,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ]}