Identification_Information: Citation: Citation_Information: Originator: David W. Moore Originator: Arthur W. Straub Originator: Margaret E. Berry Originator: Michael L. Baker Originator: Theodore R. Brandt Publication_Date: 2002 Title: Generalized Surficial Geologic Map of the Pueblo 1° x 2° Quadrangle, Colorado Edition: 1.0 Series_Information: Series_Name: Miscellaneous Field Studies Issue_Identification: MF-2388 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Online_Linkage: http://geology.cr.usgs.gov/pub/mf-maps/mf-2388/ Description: Abstract: Fifty-three types of surficial geologic deposits and residual materials of Quaternary age are described in a pamphlet and located on a map of the greater Pueblo area, in part of the Front Range, in the Wet and Sangre de Cristo Mountains, and on the plains east of Colorado Springs and Pueblo. Deposits formed by landslides, wind, and glaciers, as well as colluvium, residuum, alluvium, and others are described in terms of predominant grain size, mineral or rock composition (e.g., gypsiferous, calcareous, granitic, andesitic), thickness, and other physical characteristics. Origins and ages of the deposits and geologic hazards related to them are noted. Many lines drawn between units on our map were placed by generalizing contacts on published maps. However, in 1997-1999 we mapped new boundaries as well. The map was projected to the UTM projection. This large map area extends from near Salida (on the west edge), eastward about 107 mi (172 km), and from Antero Reservoir and Woodland Park on the north edge to near Colorado City at the south edge (68 mi; 109 km). Purpose: The report may be used for land-use planning (e.g., selecting land-fill sites, greenbelts, avoiding geologic hazards), for finding aggregate resources (crushed rock, sand, and gravel), and for study of geomorphology and Quaternary geology. The report identifies geologic hazards (e.g., landslides, swelling soils, heaving bedrock, and flooding) if they are known to be located in, or characteristic of, mapped units. Surficial deposits in the quadrangle are evidence of depositional events of the Quaternary Period (the most recent 1.8 million years). Some events such as floods are familiar to persons living in the area, while others preceded human occupation. The latter include glaciation, probable large earthquakes, protracted drought, and widespread deposition of sand and silt by wind. At least twice in the past 200,000 years (most recently from about 30,000 to 12,000 years ago) global cooling caused glaciers to form on Pikes Peak and in the high parts of the Sangre de Cristo Mountains. Some glaciers advanced down valleys, deeply eroded the bedrock, and deposited moraines (map units tbk, tbg, tbj, tbi) and deposited outwash (ggq, gge), in the Wet Mountain Valley. On the plains (east part of map area), eolian sand (es), stabilized dune sand (ed), and loess (elb) are present and in places contain buried paleosols, which indicate sand dune deposition alternating with periods of stabilized landscape during which soils developed. Supplemental_Information: Compilation scale: 1:250,000. Map is available in digital and print-on-demand paper formats. Deposits are described in terms of predominant grain size, mineralogic and lithologic composition, general thickness, and geologic hazards, if any, and relevant geologic historical information and paleosoil information, if any. Fifty-three map units of deposits include alluvium, colluvium, residuum, eolian deposits, periglacial/disintegrated deposits, tills, landslide units, glaciofluvial units, and a diamicton. A bedrock map unit depicts large areas of mostly bare bedrock. The physical properties of materials were compiled from published soil and geologic maps and reports, our field observations, and from earth science journal articles. Selected deposits in the field were checked for conformity to descriptions of map units by the Quaternary geologist who compiled the surficial geologic map units. FILES INCLUDED IN THIS DATA SET: >puebpoly: polygon coverage containing geologic unit contacts and labels. >puebline: arc coverage containing faults. >puebpnt: point coverage containing point locations of decorative > bar-and-ball symbols for faults. >geol_sfo.lin: This lineset file defines geologic line types in the > geologically themed coverages. >geoscamp2.mrk: This markerset file defines the geologic markers in the > geologically themed coverages. >color524.shd: This shadeset file defines the cmyk values of colors > assigned to polygons in the geologically themed coverages. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: Irregular. No major update is anticipated. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -106.0 East_Bounding_Coordinate: -104.0 North_Bounding_Coordinate: 39.0 South_Bounding_Coordinate: 38.0 Keywords: Theme: Theme_Keyword_Thesaurus: Glossary of Geology, American Geological Institute Theme_Keyword: surficial deposits Theme_Keyword: slumping Theme_Keyword: flooding Theme_Keyword: gravel Theme_Keyword: sand Theme_Keyword: glacial deposits Theme_Keyword: till Theme_Keyword: terrace gravel Theme_Keyword: pediment gravel Theme_Keyword: periglacial Theme_Keyword: bedrock Theme_Keyword: placer gold Theme_Keyword: landslide deposit Theme_Keyword: debris-flow deposit Theme_Keyword: rock avalanche Theme_Keyword: Quaternary deposits Theme_Keyword: Holocene Theme_Keyword: eolian sand Theme_Keyword: loess Theme_Keyword: alluvium Theme_Keyword: colluvium Theme_Keyword: Pleistocene Theme_Keyword: land-use planning Theme_Keyword: surficial geology Theme_Keyword: swelling clay Theme_Keyword: expansive clay Theme_Keyword: heaving bedrock Theme_Keyword: erosion Theme_Keyword: soil Place: Place_Keyword_Thesaurus: U.S. Board on Geographic Names (BGN) Geographic Names Information System (GNIS) Place_Keyword: United States of America Place_Keyword: Colorado Place_Keyword: Colorado Springs Place_Keyword: Pueblo Place_Keyword: Salida Place_Keyword: Saguache County Place_Keyword: Crowley County Place_Keyword: Douglas County Place_Keyword: Elbert County Place_Keyword: El Paso County Place_Keyword: Grand County Place_Keyword: Lincoln County Place_Keyword: Park County Place_Keyword: Custer County Place_Keyword: Teller County Place_Keyword: Fowler Place_Keyword: Arkansas River Place_Keyword: Canon City Place_Keyword: Westcliffe Place_Keyword: San Luis Valley Place_Keyword: Pikes Peak Place_Keyword: Security Place_Keyword: Fountain Place_Keyword: Florissant Place_Keyword: Front Range Place_Keyword: Southern Rocky Mountains Place_Keyword: Colorado Piedmont Place_Keyword: Great Plains Access_Constraints: none Use_Constraints: none. Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: David W. Moore Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing Address: P.O. Box 25046, MS 913 Address: Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-1271 Contact_Electronic_Mail_Address: dwmoore@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://geology.cr.usgs.gov/pub/mf-maps/mf-2388/mf-2388_print.pdf Browse_Graphic_File_Description: The browse graphic file depicts a layout, featuring geologic map and supporting information. The geologic map image is colored, labeled polygons of surficial geologic units and is shown with a scanned image of roads, rivers, political boundaries, place names, and other base map features, all registered to the geologic map. These features are the standard USGS 1:250,000 base map data, including longitude and latitude, numbered UTM (meters), and the Colorado State Coordinate System (feet) grid ticks (21 internal grid tics at 15-minute intervals of longitude and latitude are visible). Supporting information includes a correlation chart of geologic map units, a list of map unit symbols and names, and a small location map that shows the quadrangle location relative to rivers, state boundaries, and locations of 26 published USGS geologic maps (1:250,000 scale) in the Colorado Plateau and western Great Plains. An accompanying pamphlet includes a complete description of map units, selected references, and a description of terminology used. Browse_Graphic_File_Type: PDF Data_Set_Credit: Many geologic contacts resulted from generalizing parts of the Geologic Map of the Pueblo 1x2-degree quadrangle, south-central Colorado (G. R. Scott, R.B. Taylor, R.C. Epis, and R.A. Wobus, 1978, USGS Miscellaneous Investigations Series Map I-1022). This linework was originally intended to be reduced as partial input for a more extensive 1:1,000,000-scale map. We digitized these lines initially, edited them to obtain more detail and accuracy, and added data from soil and geologic reports appropriate for a 1:250,000-scale published map. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: We checked attributes for accuracy by preparing a check plot in which map element colors, patterns, and decorations are determined by the attribute values. The plot was then visually checked against the geologists' original compilations. Polygon closure, compilation, and attribution errors were corrected. Logical_Consistency_Report: Map elements were visually checked for overshoots, undershoots, duplicate features, polygon closures, and other errors. Automated (ArcInfo AML) routines were also used to check the databases for polygon label errors, line or point attribution errors, sliver polygons, dangling arcs, intersection errors, and projection information. The map was reviewed by two geologists, including another Quaternary specialist, for consistency with geologic principles and general conformity to USGS mapping standards. Completeness_Report: Data are complete: no features that could be accurately represented at the compilation scale of 1:250,000 were eliminated. Map units have been generalized from larger or same-scale source maps. Unit properties are described in the accompanying pamphlet. The smallest area expressed in this data set is approximately 62,500 square meters (0.0625 sq. km. or, a square area 250 m on a side). Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Map lines that depict contacts between geologic units were placed by generalizing contacts obtained from published geologic maps, viewing orthophotoquads in USDA county published soil reports, and the authors' field observations. Lines were digitized by using a digitizer tablet having a resolution of 0.001 in. No elevation data exist in the database. No systematic analysis of accuracy was attempted. The best accuracy is that of map lines around boundaries of young channel alluvial deposits, unit asa. They are within 2 mm of their correct map location (within 500 m of actual ground limits) relative to map symbols that depict topography and streams. Perhaps half are within 1 mm of correct map location (250 m of actual ground location). Other map boundaries that represent colluvial, residual, and eolian deposits are less accurately placed because ground limits of these deposits are indefinite, i.e., they grade into one another. Thus, many boundaries on the map (vectorized polygons) are approximate. Another source of inaccuracy is that a material may contain inclusions of surficial materials other than the material depicted by any given map unit. Lineage: Process_Step: Process_Description: The Pueblo surficial geologic database was digitized from pen-and-ink compilations on scale-stable base material using the GSMCAD public domain program (USGS Open-File Report 96-007). Process_Date: 1999 Process_Step: Process_Description: The digitized linework was edited and revised several times for improved accuracy. Process_Date: 1999 Process_Step: Process_Description: The database was exported to ArcInfo using the GSMCAD export function to create ARC-generated ASCII files and the gsmarc.aml program in ARC to convert the ASCII files to ARC coverages and build polygons. Process_Date: 1999 Process_Step: Process_Description: Coverages were edited and revised in ArcInfo 8.0.2 to reflect editorial changes and to further attribute polygons with descriptions and all features with source information. Process_Date: 2000 Process_Step: Process_Description: External attribute lookup tables for labels and symbols were incorporated into the coverages using the joinitem command. Process_Date: 2000 Process_Step: Process_Description: Final revisions to the digital database were made and a map layout (browse graphic) prepared in Adobe Illustrator and saved in PDF format. Process_Date: 2000 Process_Step: Process_Description: The digital database was quality checked by the data manager, USGS Central Region Earth Surface Processes team. Process_Date: 2001 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 13 Transverse_Mercator: Scale_Factor_at_Central_Meridian: .9996 Longitude_of_Central_Meridian: -105.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 200 Ordinate_Resolution: 200 Planar_Distance_Units: METERS Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: DATABASE STRUCTURE -- ArcInfo and ArcView ========== There are three coverages (root name = pueb) and three additional info files. This GIS database includes related look-up tables, which store detailed attribute information. Arc/Info relates for each coverage are saved in a file named .rel. Use the RELATE command with the restore argument at the arc prompt to make the relates active. Alternatively, in Arctools, use the Relate environment: open dialog in the Manage - Relates flyout menu under the Arctools menu to make the relates active. puebpoly coverage: contains all contact lines and labelpoints for each geologic polygon. In the puebpoly.pat INFO file the LABEL item indicates the rock unit label (abbreviation) used to label the unit on the map. The DESC item contains the formal or informal unit name. The SOURCE item contains the numeric code used to identify the data source for the rock unit. The SYMBOL item contains the shadeset symbol number used by ArcInfo to plot a filled/shaded polygon. The symbol numbers in this coverage refer to the color524.shd shadeset. In the coverage's puebpoly.aat INFO file the NAME item contains the name given to the line feature. The SOURCE item contains the numeric code used to identify the data source for the line feature. The SYMBOL item contains the lineset symbol number used by ArcInfo to plot a line. The symbol numbers in this coverage refer to the geol_sfo.lin lineset. In the coverage's puebpoly.ref INFO file the SOURCE item lists the numeric code used to identify the data source. The scale item lists the scale of the source map. (This value is the denominator of the proportional fraction that identifies the scale of the map that was digitized or scanned to produce the digital map.) The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial. The YEAR item lists the source (map) publication date. The REFERENCE item lists the remainder of the reference in USGS reference format. The INFO structure of these files is listed below: >PUEBPOLY.PAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 PUEBPOLY# 4 5 B - > 21 PUEBPOLY-ID 4 5 B - > 25 SOURCE 4 4 I - > 29 LABEL 10 10 C - > 39 DESC 123 123 C - > 162 SYMBOL 3 3 I - >PUEBPOLY.AAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 FNODE# 4 5 B - > 5 TNODE# 4 5 B - > 9 LPOLY# 4 5 B - > 13 RPOLY# 4 5 B - > 17 LENGTH 8 18 F 5 > 25 PUEBPOLY# 4 5 B - > 29 PUEBPOLY-ID 4 5 B - > 33 NAME 30 30 C - > 63 SOURCE 4 4 I - > 67 SYMBOL 3 3 I - > Unique values of NAME in PUEBPOLY.AAT: Fault, Quaternary age, > Contact, Map boundary, Shoreline >PUEBPOLY.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - puebline coverage: contains faults. In the puebline.aat INFO file the NAME item indicates the name given to the structural feature. In the coverage's puebline.ref INFO file the SOURCE item lists the numeric code used to identify the data source. The scale item lists the scale of the source map. (This value is the denominator of the proportional fraction that identifies the scale of the map that was digitized or scanned to produce the digital map.) The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial. The YEAR item lists the source (map) publication date. The REFERENCE item lists the remainder of the reference in USGS reference format. The INFO structure of these files is listed below: >PUEBLINE.AAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 FNODE# 4 5 B - > 5 TNODE# 4 5 B - > 9 LPOLY# 4 5 B - > 13 RPOLY# 4 5 B - > 17 LENGTH 8 18 F 5 > 25 PUEBLINE# 4 5 B - > 29 PUEBLINE-ID 4 5 B - > 33 NAME 80 80 C - > 113 SOURCE 4 4 I - > 117 SYMBOL 3 3 I - > Unique values of NAME in PUEBLINE.AAT: Fault, Quaternary age , > High-angle reverse fault - Inferred >PUEBLINE.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - puebpnt coverage: Contains points recording locations of bar-and-ball symbols. In the puebpnt.pat INFO file the PTTYPE item lists the type of point symbol, e.g., bar-and-ball. The SYMBOL item lists the marker symbol used by ArcInfo to identify the type of structural map symbol. Symbol numbers refer to symbols in the geoscamp2.mrk markerset. ). The STRIKE item contains the azimuthal value of any point symbol as well as strike of bedding, and trend of fold axis, where applicable. Strike is an azimuthal angle. Measured in degrees from 0 to 360 in a clockwise direction from North, the STRIKE value also specifies the dip direction, where the dip direction is 90 degrees clockwise relative to the STRIKE. The DIP item contains the dip of bedding as well as plunge angles, where applicable. This value is an angle measured (in degrees 0 to 90) down from the horizontal; thus a horizontal dip is 0 degrees and a vertical dip is 90 degrees. The SOURCE item lists the numeric code used to identify the data source. In the coverage's puebpnt.ref INFO file the SOURCE item lists the numeric code used to identify the data source. The scale item lists the scale of the source map. (This value is the denominator of the proportional fraction that identifies the scale of the map that was digitized or scanned to produce the digital map.) The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial. The YEAR item lists the source (map) publication date. The REFERENCE item lists the remainder of the reference in USGS reference format. The INFO structure of these files is listed below: >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 PUEBPNT# 4 5 B - > 21 PUEBPNT-ID 4 5 B - > 25 PTTYPE 32 32 C - > 57 SYMBOL 3 3 I - > 60 STRIKE 3 3 I - > 63 DIP 3 3 I - > 66 SOURCE 4 4 I - > Unique values of PTTYPE in PUEBPNT.PAT: Ball-and-bar >PUEBPNT.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - Entity_and_Attribute_Detail_Citation: >Database root name: pueb >LABEL AND DESCRIPTION FOR GEOLOGIC UNITS MAPPED >LABEL DESC >R Bedrock >afa Alluvial-fan deposit >afb Alluvial-fan gravelly loam >afk Alluvial-fan gravelly loam >agm Alluvial gravel and sand (Verdos and Rocky Flats Alluviums, undivided; early middle Pleistocene and early Pleistocene) >ags Alluvial sand, silt, clay, and gravel (Louviers and Slocum Alluviums, undivided; late middle Pleistocene) >asa Alluvial sand, silt, clay, and gravel (post-Piney Creek alluvium, Piney Creek Alluvium, and pre-Piney Creek alluvium of Hunt, 1954, and Scott, 1960; Broadway Alluvium >cac Arkosic loamy colluvium and sheetwash alluvium >cbh Blocky sedimentary-rock colluvium >cbm Carbonate-clast loamy colluvium >cbs Rhyolite- and andesite-clast colluvium >cbu Mixed-lithology blocky colluvium >cbv Metamorphic and metavolcanic blocky colluvium >cbw Blocky basalt and andesite-clast colluvium >cby Blocky feldspathic-sandstone colluvium >ccd Calcareous clayey colluvium >cck Tuff-clast loam and clay loam colluvium >ccm Andesitic clayey colluvium >cgc Gneiss- and granite-clast gravelly colluvium >cgg Sandstone-clast sandy loam to clay loam colluvium >cgh Arkosic-clast loamy colluvium >clo Shale-, chalk-, and chalky limestone-clast loamy colluvium >clx Clay loam colluvium >cra Hogback and rangefront colluvium, alluvium, and rock outcrop complex >csk Grus, crystalline-clast colluvium, alluvium, and rock outcrop >csm Tuffaceous colluvium >dba Crystalline-clast deposits, Disintegrated and periglacial deposits, bouldery till, and rock outcrop >dbc Sedimentary-clast deposits, Disintegrated and periglacial deposits, bouldery till, and rock outcrop >dbd Mixed-lithology-clast deposits, Disintegrated and periglacial deposits >ed Stabilized dune sand >elb Loess (Peoria Formation) >es Eolian sand >esa Eolian sheet sand and loess (Included in cover sand of Frye and Leonard, 1957, Black-water Draw Formation of Reeves, 1976, described by Holiday, 1989) >f Artificial landfill >gge Outwash sand and gravel (Outwash of pre-Bull Lake glaciations) >ggq Outwash sand and gravel (Outwash of Bull Lake, Pinedale, and post-Pinedale ages) >jba Bouldery volcanic-rock landslide deposit >jbc Bouldery crystalline-rock landslide deposit >jbg Granodiorite-block debris-avalanche deposit >jea Slump-block landslide deposits, earthflow and mudflow deposits >oc Playa clay >pga Pediment gravel >s Slag >tbg Crystalline-clast bouldery till, Bouldery till (till of Pinedale and Bull Lake glaciations) >tbi Sedimentary-clast bouldery till, Bouldery till (till of Pinedale and Bull Lake glaciations) >tbj Mixed-lithology-clast bouldery till, Bouldery till (till of Pinedale and Bull Lake glaciations) >tbk Bouldery till (till of pre-Bull Lake glaciations) >w Open water >wla Loamy or clayey sheetwash alluvium >xch Clayey, calcareous disintegration residuum >xci Sandy clay disintegration residuum >xlh Limestone-chip silty loamy disintegration residuum >xlj Silty loam disintegration residuum >xlu Feldspathic loamy disintegration residuum >xsg Feldspathic quartz-sand disintegration residuum Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: MS 902, Box 25046, Denver Federal Center City: Lakewood State_or_Province: CO Postal_Code: 80225-0046 Contact_Voice_Telephone: (303) 236-5486 Resource_Description: MF-2388 Distribution_Liability: Any use of trade names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this digital spatial data has been subjected to rigorous review and is substantially complete, it is released on the condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE,SHP Format_Version_Number: ArcInfo 8.1.2 File_Decompression_Technique: GZIP TAR archive: In UNIX use the command "gunzip -c | tar xvf -" In Windows, use WinZip (http://www.winzip.com/) or other programs to extract the file. Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://geology.cr.usgs.gov/pub/mf-maps/mf-2388/ Fees: No cost for the digital files Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: USGS Information Services, Box 25286, Denver Federal Center City: Lakewood State_or_Province: CO Postal_Code: 80225 Contact_Voice_Telephone: 1-888-ASK-USGS Resource_Description: MF-2388 (Map-on-demand) Distribution_Liability: Any use of trade names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this digital spatial data has been subjected to rigorous review and is substantially complete, it is released on the condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Standard_Order_Process: Non-digital_Form: Available as one sheet printed on a plotter; plus one pamphlet. Order from USGS at the address listed above or see for more information about ordering. Fees: Call 1-888-ASK-USGS or see for current pricing information. Metadata_Reference_Information: Metadata_Date: 20011107 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: David W. Moore, David Fullerton, or current Quaternary geologist Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey Address: MS 913, Box 25046 Denver Federal Center City: Lakewood State_or_Province: CO Postal_Code: 80225-0046 Contact_Voice_Telephone: (303) 236-1271; (303) 236-1232 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998