Identification_Information: Citation: Citation_Information: Originator: Wilson, Frederic H. Originator: Labay, Keith A. Originator: Shew, Nora Originator: Hults, Chad K. Publication_Date: 2006 Title: Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the lower Yukon River region, Alaska Edition: ver. 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: OFR 2006-1292 Online_Linkage: http://pubs.usgs.gov/of/2006/1292/ Larger_Work_Citation: Citation_Information: Originator: Patton, W.W. Jr. Originator: Wilson, F.H. Originator: Labay, K.A. Publication_Date: Unknown Title: Reconnaissance geologic map of the lower Yukon River region, Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Scientific Investigations Map Issue_Identification: SIM-??? Description: Abstract: The lower Yukon River region in southwest Alaska covers more than 30,000 square miles (78,000 square kilometers) of western Alaska. It stretches from Norton Sound on the north, to the Kilbuck Mountains on the south, from the Fox Hills and Russian Mountains on the east, and to the Bering Sea on the west. This geologic map compilation includes mapping from unpublished reconnaissance studies by J.M. Hoare, W.H. Condon, and W.L. Coonrad during the years between 1946 and 1971. It also includes the following more recent investigations, Russian Mission C-1 1:63,360 scale quadrangle by Bundtzen and Laird (1991), Kilbuck Mountains of southern Russian Mission quadrangle by Box and others (1993), the southern Holy Cross quadrangle by Miller and others (1996; 1998a; b), and unpublished data from 1987 by W.W. Patton Jr., M.L. Miller, J.M. Murphy, S.E. Box, and T.K. Bundtzen. This data set is a portion of a statewide geology database, which is being compiled by the U.S. Geological Survey's National Survey and Analysis (NSA) project, whose goal is to compile geologic, geochemical, geophysical, and other data. Purpose: This data set represents part of a systematic effort to release geologic map data for the United States in a uniform manner. Geologic data in this series has been compiled from a wide variety of sources, published and unpublished, ranging from state and regional geologic maps to large-scale field mapping. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -166.25 East_Bounding_Coordinate: -159.0 North_Bounding_Coordinate: 63.75 South_Bounding_Coordinate: 61.0 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: geology Theme_Keyword: bedrock Theme_Keyword: surficial Place: Place_Keyword_Thesaurus: Geographic names information system (GNIS) Place_Keyword: Yukon River Place_Keyword: Kilbuck Mountains Place_Keyword: Fox Hills Place_Keyword: Russian Mountains Place_Keyword: Saint Michael Place_Keyword: Black Place_Keyword: Hooper Bay Place_Keyword: Kwiguk Place_Keyword: Marshall Place_Keyword: Holy Cross Place_Keyword: Russian Mission 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_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Frederic H. Wilson Contact_Position: Geologist Contact_Address: Address_Type: mailing and phyiscal address Address: 4200 University Drive City: Anchorage State_or_Province: Alaska Postal_Code: 99508-4667 Country: U.S.A. Contact_Voice_Telephone: 907-786-7448 Contact_Electronic_Mail_Address: fwilson@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: Browse_Graphic_File_Description: Browse_Graphic_File_Type: Data_Set_Credit: Frederic H. Wilson (USGS), Keith A. Labay (contractor), Solmaz Mohjader (contractor), Nora Shew (USGS), Kelly Brunt (contractor), Dave Pray (contractor), Shaun Peterson (contractor), Chad K. Hults (USGS) Native_Data_Set_Environment: Data set was created using ESRI ARC/Info version 7.2.1 on a Unix platform Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Several types of source materials, of varying scale, were used to created this data set. Sources include previously published maps, unpublished mapping, air photo interpretation, and limited new field mapping. Vector features were mostly digitized on a large digitizing tablet. Vector and polygon attributes were assigned based on the original source. The digital data has been checked, and the geologic map has been technically reviewed and edited. Logical_Consistency_Report: Each geology coverage is a network coverage containing attributed arcs and polygons. Each polygon has coded attribute designating the mapped geologic unit. Faults, stratigraphic contacts, and other linear features are represented as arcs. When a fault is also a stratigraphic contact, only a single arc is present. Dangling arcs may be present (faults, dike, etc.) Completeness_Report: The complete data set consists of 11 different GIS coverages, 7 geology coverages and 4 fold coverages. Theres is also an associated relational database of geologic units. Each coverage has the extent of 1:250,000 scale quadrangle. A graphic representation of the GIS database and a report with complete geologic unit descriptions is provided in .pdf format. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: This data is presented for use at a nominal scale of 1:500,000, although some sources were at larger scale. Lineage: Process_Step: Process_Description: Linework for the geology compilation was hand digitized from material of various media and scale. The arcs and polygons were attributed. The spatial databases are provided in UTM projection and geographic coordinates. The native ARC/Info coverages have been exported to an interchange file format, .e00, and also converted to ArcView shape files. Process_Date: 2006 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Frederic H. Wilson Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical Address: 4200 University Drive City: Anchorage State_or_Province: Alaska Postal_Code: 99504-4667 Country: U.S.A. Contact_Voice_Telephone: 907-786-7448 Contact_Electronic_Mail_Address: fwilson@usgs.gov 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: 3 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -165.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000256 Ordinate_Resolution: 0.000256 Planar_Distance_Units: meters Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 4 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -159.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000256 Ordinate_Resolution: 0.000256 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: 294.9787 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: polygons Entity_Type_Definition: Characteristics of the polygon features in the geology coverages are coded in the polygon attribute table. The table .pat includes the following items CLASS, NSACLASS, NSAMOD, QCLASS (not used), SOURCE, LABEL, MIN_AGE, and MAX_AGE. Entity_Type_Definition_Source: this data set Attribute: Attribute_Label: NSACLASS Attribute_Definition: NSACLASS is a positive integer value (4 5 B) item in the polygon attribute table. Values range discontinuously from 0 to 6320. NSACLASS is a numeric code for the geologic unit. This data set represents a generalized map, thus it is possible that a geologic unit is made of multiple NSACLASS values. Each NSACLASS matches with geologic unit labels in LABEL and has a minimum (MIN_AGE) and maximum (MAX_AGE) range, given in million of years (my). Supplemental attribute tables included with this data set contain addtitional descriptive information of each geologic unit. A user may use items SOURCE and CLASS to retrieve information about the original units from which these generalized units were formed. NOTE: Because of the limitations of common GIS fonts, the letters " Mz", "Pz", and "Tr" are substituted for the standard symbols for "Mesozoic", "Paleozoic", and "Triassic." Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 100 Enumerated_Domain_Value_Definition: Qac - Alluvial, colluvial, and glacial drift deposits, undivided (Quaternary) Enumerated_Domain: Enumerated_Domain_Value: 102 Enumerated_Domain_Value_Definition: water Enumerated_Domain: Enumerated_Domain_Value: 105 Enumerated_Domain_Value_Definition: Qf - Floodplain, tidal flats, and estuarine deposits (Quaternary) Enumerated_Domain: Enumerated_Domain_Value: 115 Enumerated_Domain_Value_Definition: Qbl - Beach and lagoonal deposits (Quaternary) Enumerated_Domain: Enumerated_Domain_Value: 120 Enumerated_Domain_Value_Definition: Qw - Wind-blown deposits (Quaternary) Enumerated_Domain: Enumerated_Domain_Value: 330 Enumerated_Domain_Value_Definition: Qb - Young scoriaceous tholeiitic basalt lava flows and cones (Quaternary) Enumerated_Domain: Enumerated_Domain_Value: 350 Enumerated_Domain_Value_Definition: QTb - Basalt lava flows (Quaternary and latest Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 1004 Enumerated_Domain_Value_Definition: Tb - Basalt lava flows (late Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 1600 Enumerated_Domain_Value_Definition: TKad - Dacite, rhyolite, andesite, and basalt lava flows, and volcaniclastic and hypabyssal rocks, undivided (Tertiary and latest Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 1602 Enumerated_Domain_Value_Definition: TKi - Shallow intrusive rocks of intermediate and silicic composition (early Tertiary and latest Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 1625 Enumerated_Domain_Value_Definition: TKd - Dacititc and rhyolitic flows, domes, ash-flows tuffs, and hyabyssal rocks (early Tertiary and latest Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 1631 Enumerated_Domain_Value_Definition: TJb - Whitefish Lake Volcanic Field (early Tertiary? to Jurassic?) Enumerated_Domain: Enumerated_Domain_Value: 1635 Enumerated_Domain_Value_Definition: TKa - Andesite and basalt flows and volcaniclastic rocks (early Tertiary and latest Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 1655 Enumerated_Domain_Value_Definition: TKg - Granite, granodiorite, syenite, and monzonite (early Tertiary and latest Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 1682 Enumerated_Domain_Value_Definition: TJm - Altered mafic plutonic rocks (early Tertiary? to Jurassic?) Enumerated_Domain: Enumerated_Domain_Value: 1943 Enumerated_Domain_Value_Definition: Kym - Polymict conglomerate, sandstone, siltstone, and shale (Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 1985 Enumerated_Domain_Value_Definition: Kks - Sandstone, siltstone, and shale (Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 2021 Enumerated_Domain_Value_Definition: Kys - Sandstone and siltstone (Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 2023 Enumerated_Domain_Value_Definition: Kys - Sandstone and siltstone (Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 2102 Enumerated_Domain_Value_Definition: Kygc - Highly calcareous graywacke sandstone and mudstone turbidites (Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 2105 Enumerated_Domain_Value_Definition: Kygv - Graywacke sandstone and mudstone turbidites containing abundant laumonitized volcanic debris (Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 2180 Enumerated_Domain_Value_Definition: Kyg - Graywacke sandstone and mudstone turbidites, undivided (Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 2330 Enumerated_Domain_Value_Definition: KJv - Andesitic and basaltic volcaniclastic rocks and lava flows, chert, and mudstone (Early Cretaceous and Jurassic) Enumerated_Domain: Enumerated_Domain_Value: 2480 Enumerated_Domain_Value_Definition: Kg - Granodiorite and granite (Late and Early Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 2870 Enumerated_Domain_Value_Definition: KJb - Basalt and andesite lava flows (Early Cretaceous and (or) Late Jurassic) Enumerated_Domain: Enumerated_Domain_Value: 2885 Enumerated_Domain_Value_Definition: TJi - Hyabyssal felsic intrusive rocks (early Tertiary? to Jurassic?) Enumerated_Domain: Enumerated_Domain_Value: 3120 Enumerated_Domain_Value_Definition: Jvc - Volcaniclastic conglomerate, sandstone, and shale (Late and Middle Jurassic) Enumerated_Domain: Enumerated_Domain_Value: 3380 Enumerated_Domain_Value_Definition: Jt - Trondhjemite, tonalite, and gabbro (Jurassic) Enumerated_Domain: Enumerated_Domain_Value: 3450 Enumerated_Domain_Value_Definition: Jab - Andesitic and basaltic lava flows and marine volcaniclastic rocks (Middle Jurassic) Enumerated_Domain: Enumerated_Domain_Value: 3498 Enumerated_Domain_Value_Definition: MzPzum - Serpentinized ultramafic rocks (Mesozoic and Paleozoic?) Enumerated_Domain: Enumerated_Domain_Value: 5235 Enumerated_Domain_Value_Definition: KMu - Andesitic and basaltic volcaniclastic rocks, lava flows, chert, and mudstone (KJv) and altered basalt, chert, chert breccia, argillite, tuff, volcaniclastic graywacke, and limestone (TrMv), undivided (Cretaceous to Mississippian) Enumerated_Domain: Enumerated_Domain_Value: 5280 Enumerated_Domain_Value_Definition: TrMv - Complexly deformed assemblage of altered basalt, chert, chert breccia, argillite, tuff, volcaniclastic graywacke, and limestone (Triassic to Mississippian) Enumerated_Domain: Enumerated_Domain_Value: 6320 Enumerated_Domain_Value_Definition: ls - limestone Attribute: Attribute_Label: NSAMOD Attribute_Definition: NSAMOD is a character (8 10 C) item in the polygon attribute table. Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: HFS - contact metamorphism, hornfels Q - queried unit Attribute: Attribute_Label: SOURCE Attribute_Definition: SOURCE is a character (6 8 C) item found in both the polygon and arc attribute tables. The values are abbreviated codes representing the original source references for the polygon or arc feature. The format for SOURCE is XX###, where XX is a two letter code for the 1:250,000 scale quadrangle and ### is a three digit number (with leading zeros). All source codes with '001' are unspecified sources for water and ice features, often paper topographic maps, and DRG or DLG files. Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: BL002 Enumerated_Domain_Value_Definition: Hoare, J.M., and Condon, W.H., 1966, Geologic map of the Kwiguk and Black quadrangles, western Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Series Map I-469, scale 1:250,000. Enumerated_Domain: Enumerated_Domain_Value: BL003 Enumerated_Domain_Value_Definition: Patton, W.W., Jr., Wilson, F.H., and Labay, K.A., in prep., Reconnaissance geologic map of the lower Yukon River region, Alaska: U.S. Geological Survey Scientific Investigations Series Map SIM-xxxx, scale 1:500,000. Enumerated_Domain: Enumerated_Domain_Value: HC003 Enumerated_Domain_Value_Definition: Patton, W.W., Jr., Wilson, F.H.., and Labay, K.A., in prep., Reconnaissance geologic map of the lower Yukon River region, Alaska: U.S. Geological Survey Scientific Investiations Series Map SIM-xxxx, scale 1:500,000. Enumerated_Domain: Enumerated_Domain_Value: HP002 Enumerated_Domain_Value_Definition: Hoare, J.M., and Condon, W.H., 1968, Geologic map of the Hooper Bay quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Series Map I-523, scale 1:250,000. Enumerated_Domain: Enumerated_Domain_Value: HP003 Enumerated_Domain_Value_Definition: Patton, W.W., Jr., Wilson, F.H., and Labay, K.A., in prep., Reconnaissance geologic map of the lower Yukon River region, Alaska: U.S. Geological Survey Scientific Investigations Series Map SIM-xxxx, scale 1:500,000. Enumerated_Domain: Enumerated_Domain_Value: KW003 Enumerated_Domain_Value_Definition: Patton, W.W., Jr., Wilson, F.H., and Labay, K.A., in prep., Reconnaissance geologic map of the lower Yukon River region, Alaska: U.S. Geological Survey Scientific Investigations Series Map SIM-xxxx, scale 1:500,000. Enumerated_Domain: Enumerated_Domain_Value: MA003 Enumerated_Domain_Value_Definition: Patton, W.W., Jr., Wilson, F.H., and Labay, K.A., in prep., Reconnaissance geologic map of the lower Yukon River region, Alaska: U.S. Geological Survey Scientific Investigations Series Map SIM-xxxx, scale 1:500,000. Enumerated_Domain: Enumerated_Domain_Value: RM005 Enumerated_Domain_Value_Definition: Patton, W.W., Jr., Wilson, F.H., and Labay, K.A., in prep., Reconnaissance geologic map of the lower Yukon River region, Alaska: U.S. Geological Survey Scientific Investigations Series Map SIM-xxxx, scale 1:500,000. Enumerated_Domain: Enumerated_Domain_Value: SC002 Enumerated_Domain_Value_Definition: Hoare, J.M., and Condon, W.H., 1971, Geologic map of the St. Michael quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Series Map I-682, scale 1:250,000. Enumerated_Domain: Enumerated_Domain_Value: SC003 Enumerated_Domain_Value_Definition: Patton, W.W., Jr., Wilson, F.H., and Labay, K.A., in prep., Reconnaissance geologic map of the lower Yukon River region, Alaska: U.S. Geological Survey Scientific Investigations Series Map SIM-xxxx, scale 1:500,000. Detailed_Description: Entity_Type: Entity_Type_Label: arcs Entity_Type_Definition: Characteristics of the arc features in the geology and fold coverages are coded in the arc attribute table. Table .aat includes the following items: ARC-CODE, ARC-PARA1, and SOURCE. For explanation of SOURCE, see attribute definitions for polygons. Entity_Type_Definition_Source: this data set Attribute: Attribute_Label: ARC-CODE Attribute_Definition: ARC-CODE is a positive integer value (3 3 I) item in the arc attribute table. Values range discontinuously from 1 to 99. Values match one-for-one with geologic features (such as stratigraphic boundary, fault, etc.) Some ARC-CODE values have additional modifiers in item ARC-PARA1. Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Stratigraphic or intrusive contact, location certain Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Stratigraphic or intrusive contact, location approximate Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: Normal fault, location certain; if ARC-PARA1 = 1, then upthrown side on the right from origin Enumerated_Domain: Enumerated_Domain_Value: 5 Enumerated_Domain_Value_Definition: Normal fault, location approximate; if ARC-PARA1 = 1, then upthrown side is on right from origin Enumerated_Domain: Enumerated_Domain_Value: 6 Enumerated_Domain_Value_Definition: Normal fault, location inferred, queried; if ARC-PARA1 = 1, then upthrown side is on right from origin Enumerated_Domain: Enumerated_Domain_Value: 7 Enumerated_Domain_Value_Definition: Shoreline or riverbank Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Boundary of altered zone or hornfels; no symbol drawn Enumerated_Domain: Enumerated_Domain_Value: 21 Enumerated_Domain_Value_Definition: Syncline, location certain, digitized in direction of plunge; ARC-PARA1 equals angle of plunge, 0 is no plunge, 1 is plunge of unknown dip Enumerated_Domain: Enumerated_Domain_Value: 22 Enumerated_Domain_Value_Definition: Syncline, location inferred, queried, digitized in direction of plunge; ARC-PARA1 equals angle of plunge, 0 is no plunge, 1 is plunge of unknown dip. Enumerated_Domain: Enumerated_Domain_Value: 24 Enumerated_Domain_Value_Definition: Anticline, location certain, digitized in direction of plunge; ARC-PARA1 equals angle of plunge, 0 is no plunge, 1 is plunge of unknown dip. Enumerated_Domain: Enumerated_Domain_Value: 30 Enumerated_Domain_Value_Definition: Fault, sense of displacement uncertain, location certain Enumerated_Domain: Enumerated_Domain_Value: 31 Enumerated_Domain_Value_Definition: Fault, sense of displacement uncertain, location approximate Enumerated_Domain: Enumerated_Domain_Value: 52 Enumerated_Domain_Value_Definition: Concealed normal fault Enumerated_Domain: Enumerated_Domain_Value: 57 Enumerated_Domain_Value_Definition: Concealed right lateral fault Enumerated_Domain: Enumerated_Domain_Value: 71 Enumerated_Domain_Value_Definition: Normal fault, location certain, having right lateral oblique slip Enumerated_Domain: Enumerated_Domain_Value: 88 Enumerated_Domain_Value_Definition: Right lateral fault, location approximate Enumerated_Domain: Enumerated_Domain_Value: 91 Enumerated_Domain_Value_Definition: Left lateral fault, location approximate Enumerated_Domain: Enumerated_Domain_Value: 99 Enumerated_Domain_Value_Definition: Bounding line of coverage Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: MS 902 Box 25286 Denver Federal Center City: Lakewood State_or_Province: CO Postal_Code: 80225 Country: U.S.A. Contact_Voice_Telephone: 1-888-ASK-USGS Resource_Description: Open-File Report 2006-1292 Distribution_Liability: This world-wide web publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability of responsibility for the accuracy, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE File_Decompression_Technique: zip files Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http//pubs.usgs.gov/of/2006/1292/ Fees: There is no cost for the download of these digital files Metadata_Reference_Information: Metadata_Date: 20060915 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Nora Shew Contact_Address: Address_Type: mailing and physical address Address: 4200 University Drive City: Anchorage State_or_Province: Alaska Postal_Code: 99508-4667 Country: U.S.A. Contact_Voice_Telephone: 907-786-7445 Contact_Electronic_Mail_Address: nshew@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998