Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map for the Yukon Flats region, east central Alaska

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Labay, K.A.

Originator: Crews, Jesse

Originator: Wilson, F.H.

Originator: Shew, Nora

Originator: Hults, C.K.

Publication_Date: 2006

Title:

Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map for the Yukon Flats region, east central 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 2006-1304

Online_Linkage: <http://pubs.usgs.gov/of/2006/1304/>

Larger_Work_Citation:

Citation_Information:

Originator: Till, A. B.

Originator: Dumoulin, J.A.

Originator: Phillips, J.D.

Originator: Stanley, R.G.

Originator: Crews, J.M.

Publication_Date: Unknown

Title:

Generalized bedrock geologic map, Yukon Flats region, east-central Alaska

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Scientific Investigations Map

Issue_Identification: SIM-???

Description:

Abstract:

The Yukon Flats basin is an areally extensive forested lowland that contains numerous lakes, streams, and marsh areas bordered by densely vegetated low rolling hills in east central Alaska. The 1:500,000-scale generalized geologic map of the Yukon Flats basin and its borderlands is intended to show major geologic features that surround the basin. Geologic (rock) units are generalized to highlight significant structural boundaries and relationships in order to make the general geologic setting of the basin more clearly evident and the subsurface basin geology more easily inferred. The map was compiled largely from existing geologic maps, most based on field data collected between 1948 and 1974. However, mapping in the Livengood, Circle, and parts of the Bettles and Wiseman quadrangles was done in the late 1970's and 1980's. Data from the Tanana quadrangle was collected as recently as 2003.

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:

The 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: -153.0

East_Bounding_Coordinate: -141.0

North_Bounding_Coordinate: 68.0

South_Bounding_Coordinate: 65.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: geology

Theme_Keyword: bedrock

Theme_Keyword: structure

Place:

Place_Keyword_Thesaurus: Geographic names information system (GNIS)

Place_Keyword: Yukon Flats

Place_Keyword: Yukon River

Place_Keyword: Alaska

Place_Keyword: Beaver

Place_Keyword: Bettles

Place_Keyword: Black River

Place_Keyword: Chandalar

Place_Keyword: Charley River

Place_Keyword: Christian

Place_Keyword: Circle

Place_Keyword: Coleen

Place_Keyword: Fort Yukon

Place_Keyword: Livengood

Place_Keyword: Tanana

Place_Keyword: Wiseman

Access_Constraints: None

Use_Constraints:

None. Acknowledment 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 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: fwilson@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

Browse_Graphic_File_Description:

Browse_Graphic_File_Type:

Data_Set_Credit:

Jesse Crews (contractor), Keith A. Labay (contractor), Frederic H. Wilson (USGS)

Native_Data_Set_Environment:

Data set was created using ESRI ArcGIS and ARC/Info version 7.2.1

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The compiled geology was digitized from a hand drawn 1:500,000 scale paper map. Vector and polygon attributes were assigned. 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 a 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. Dangle arcs may be present (faults, dike, etc.)

Completeness_Report:

The complete data set consists of 14 different GIS coverages, 12 geology coverages and 2 fold coverages. There is also an associated relational database of geologic units. Each coverage has the extent of a 1:250,000 scale quadrangle. A graphic representation of the GIS database and a report with complete geologic descriptions is provided in .pdf format.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: This data is presented for use at a scale of 1:500,000.

Lineage:

Process_Step:

Process_Description:

Linework for the geology and folds were digitized and incorporated into a geodatabase by Jesse Crews. The geology and folds were converted to coverages with the NSA standard data base structure by Keith Labay. The data was divided into 1:250,000 scale quadrangle extents. Each coverage is provided in UTM projection and geographic coordinates. The 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

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

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: 5

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -153.0

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: 6

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -147.0

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: 7

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -141.0

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 <cov>.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: CLASS

Attribute_Definition:

CLASS is a positive integer value (4 5 B) item in the polygon attribute table. Values range discontinuously from 0 to 4040. CLASS is a numeric code for the geologic unit from Till and others, in prep. Each CLASS matches with a geologic unit label in LABEL and has a minimum (MIN_AGE) and maximum (MAX_AGE) range, given in million of years (my).

Each map unit has been assigned an NSACLASS value (4 5 B). NSACLASS is a numeric code used for compilation geologic mapping for the state of Alaska. This data set represents a generalized map, thus it is possible that a geologic unit is made of multiple NSACLASS values.

NOTE: Because of the limitations of common GIS fonts, the letters "C", "pC", "Mz", "P", "Pz", "Tr" are substituted for the standard symbols for "Cambrian", "Precambrian", "Mesozoic", "Proterozoic", "Paleozoic", and "Triassic." The letters "C" (Carboniferous and Cambrian) and "P" (Permian and Proterozoic) have multiple age designations, so the user should refer to the geologic unit descriptions for the correct geologic age.

Attribute_Definition_Source: this data set

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 4000

Enumerated_Domain_Value_Definition: Cg - Granite (Carboniferous); NSACLASS = 7050

Enumerated_Domain:

Enumerated_Domain_Value: 4001

Enumerated_Domain_Value_Definition:

CPt - Sedimentary rocks of the Tindir Group (Cambrian? and Proterozoic); NSACLASS = 7990

Enumerated_Domain:

Enumerated_Domain_Value: 4002

Enumerated_Domain_Value_Definition:

DCpu - Older strata of the Porcupine River sequence of Brosge and Reiser (1969), undivided (Devonian to Cambrian); NSACLASS = 6970

Enumerated_Domain:

Enumerated_Domain_Value: 4003

Enumerated_Domain_Value_Definition:

DZs - Metamorphosed sedimentary rocks (Devonian to Proterozoic); NSACLASS = 5560

Enumerated_Domain:

Enumerated_Domain_Value: 4004

Enumerated_Domain_Value_Definition:

DSc - Metamorphosed sedimentary rocks (Devonian and Silurian); NSACLASS = 6990

Enumerated_Domain:

Enumerated_Domain_Value: 4005

Enumerated_Domain_Value_Definition:

JDat - Angayucham-Tozitna terrane, undivided (Early Jurassic to Devonian); NSACLASS = 5133

Enumerated_Domain:

Enumerated_Domain_Value: 4006

Enumerated_Domain_Value_Definition:

JMpu - Younger strata of the Porcupine River sequence of Brosge and Reiser (1069), undivided (Jurassic to Mississippian); NSACLASS = 3280

Enumerated_Domain:

Enumerated_Domain_Value: 4007

Enumerated_Domain_Value_Definition:

JMsu - Strangle Woman Creek sequence of Brosge and Reiser (1969), undivided (Jurassic to Mississippian); NSACLASS = 3270

Enumerated_Domain:

Enumerated_Domain_Value: 4009

Enumerated_Domain_Value_Definition:

KDe - Sedimentary rocks of the Endicott Mountains allochthon of Moore and others (1994) (Cretaceous to Devonian); NSACLASS = 6300

Enumerated_Domain:

Enumerated_Domain_Value: 4010

Enumerated_Domain_Value_Definition: Kg - Granitic rocks (Cretaceous); NSACLASS = 2492

Enumerated_Domain:

Enumerated_Domain_Value: 4011

Enumerated_Domain_Value_Definition:

KJg - Glenn Shale, upper part (Lower Cretaceous and Jurassic?); NSACLASS = 2861

Enumerated_Domain:

Enumerated_Domain_Value: 4012

Enumerated_Domain_Value_Definition:

KJmu - Sedimentary rocks of the Manley basin, undivided (Cretaceous and Jurassic); NSACLASS = 4730

Enumerated_Domain:

Enumerated_Domain_Value: 4013

Enumerated_Domain_Value_Definition:

Kku - Sedimentary rocks of the Kandik basin, undivided (Cretaceous); NSACLASS = 2122

Enumerated_Domain:

Enumerated_Domain_Value: 4014

Enumerated_Domain_Value_Definition:

Kkyu - Sedimentary rocks of the Yukon-Koyukuk basin, undivided (Cretaceous); NSACLASS = 2030

Enumerated_Domain:

Enumerated_Domain_Value: 4015

Enumerated_Domain_Value_Definition:

Mbu - Rocks of Brooks Range sequence of Brosge and Reiser (2000), undivided (Mississippian); NSACLASS = 6328

Enumerated_Domain:

Enumerated_Domain_Value: 4016

Enumerated_Domain_Value_Definition:

Mzmv - Fine-grained sedimentary rocks and tuff (Mesozoic?); NSACLASS = 2860

Enumerated_Domain:

Enumerated_Domain_Value: 4017

Enumerated_Domain_Value_Definition:

KJu - Sedimentary rocks, undifferentiated (Cretaceous? and Jurassic?); NSACLASS = 2810

Enumerated_Domain:

Enumerated_Domain_Value: 4018

Enumerated_Domain_Value_Definition:

PCta - Sedimentary rocks of the Tatonduk area (Permian to Cambrian); NSACLASS = 5036

Enumerated_Domain:

Enumerated_Domain_Value: 4019

Enumerated_Domain_Value_Definition:

MzPza - Low-grade metamorphic rocks (Mesozoic? and(or) Paleozoic?); NSACLASS = 5209

Enumerated_Domain:

Enumerated_Domain_Value: 4020

Enumerated_Domain_Value_Definition:

PzpCm - Metamorphic rocks (Paleozoic? and(or) Precambrian?); NSACLASS = 8852

Enumerated_Domain:

Enumerated_Domain_Value: 4021

Enumerated_Domain_Value_Definition:

PzpCb - Metasedimentary and metaigneous rocks of the southern Brooks Range and Ruby geanticline (Paleozoic and(or) Precambrian); NSACLASS = 9325

Enumerated_Domain:

Enumerated_Domain_Value: 4022

Enumerated_Domain_Value_Definition:

PzpCh - Metasedimentary and metaigneous rocks of the Hammond terrane (Paleozoic and(or) Precambrian); NSACLASS = 8850

Enumerated_Domain:

Enumerated_Domain_Value: 4023

Enumerated_Domain_Value_Definition:

PzZl - Sedimentary and igneous rocks corresponding to the Livengood area sequence of Weber and others (1992) (Paleozoic to Proterozoic); NSACLASS = 8440

Enumerated_Domain:

Enumerated_Domain_Value: 4024

Enumerated_Domain_Value_Definition:

PzZs - Sedimentary and igneous rocks corresponding to older parts of the Schwatka-Rampart area sequence of Weber and others (1992) (Paleozoic to Proterozoic); NSACLASS = 8442

Enumerated_Domain:

Enumerated_Domain_Value: 4025

Enumerated_Domain_Value_Definition:

PzZw - Sedimentary and igneous rocks corresponding to the older parts of the Fairbanks-White Mountains area sequence of Weber and others (1992) (Paleozoic to Proterozoic); NSACLASS = 8441

Enumerated_Domain:

Enumerated_Domain_Value: 4026

Enumerated_Domain_Value_Definition:

PzpCy - Metamorphic rocks of the Yukon-Tanana Upland, undivided (Paleozoic to Precambrian); NSACLASS = 8630

Enumerated_Domain:

Enumerated_Domain_Value: 4027

Enumerated_Domain_Value_Definition:

Pzqs - Sedimentary and igneous rocks (Paleozoic); NSACLASS = 5965

Enumerated_Domain:

Enumerated_Domain_Value: 4028

Enumerated_Domain_Value_Definition:

Pzum - Sedimentary and igneous rocks corresponding to older parts of the Schwatka-Rampart area sequence of Weber and others (1992) (Paleozoic to Proterozoic); NSACLASS = 5470

Enumerated_Domain:

Enumerated_Domain_Value: 4029

Enumerated_Domain_Value_Definition:

Pzvu - Sedimentary rocks of the Venetie terrane of Silberling and others (1994), undivided (Paleozoic); NSACLASS = 5335

Enumerated_Domain:

Enumerated_Domain_Value: 4030

Enumerated_Domain_Value_Definition:

Tb - Basalt flows and rare cinder cones (Tertiary); NSACLASS = 1056

Enumerated_Domain:

Enumerated_Domain_Value: 4031

Enumerated_Domain_Value_Definition:

Qu - Unconsolidated and poorly consolidated sediments, undivided (Quaternary); NSACLASS = 100

Enumerated_Domain:

Enumerated_Domain_Value: 4032

Enumerated_Domain_Value_Definition: Tg - Granitic rocks (Tertiary); NSACLASS = 1320

Enumerated_Domain:

Enumerated_Domain_Value: 4033

Enumerated_Domain_Value_Definition:

TKs - Sedimentary rocks (Tertiary and Cretaceous); NSACLASS = 1510

Enumerated_Domain:

Enumerated_Domain_Value: 4034

Enumerated_Domain_Value_Definition:

TrPgt - Glenn Shale, lower part, and Tahkandit Limestone, undivided (Triassic and Permian); NSACLASS = 5035

Enumerated_Domain:

Enumerated_Domain_Value: 4035

Enumerated_Domain_Value_Definition:

TrPs - Sedimentary rocks (Triassic to Early Permian); NSACLASS = 5012

Enumerated_Domain:

Enumerated_Domain_Value: 4036

Enumerated_Domain_Value_Definition:

TrPzd - Metasedimentary, metavolcanic, and sedimentary rocks of the Doonerak area (Triassic to lower Paleozoic); NSACLASS = 5213

Enumerated_Domain:

Enumerated_Domain_Value: 4037

Enumerated_Domain_Value_Definition: Ts - Clastic sedimentary rocks (Tertiary); NSACLASS = 640

Enumerated_Domain:

Enumerated_Domain_Value: 4038

Enumerated_Domain_Value_Definition: Tv - Volcanic rocks (Tertiary); NSACLASS = 1103

Enumerated_Domain:

Enumerated_Domain_Value: 4039

Enumerated_Domain_Value_Definition: Pzcm - Metamorphic rocks (Paleozoic?); NSACLASS = 5335

Enumerated_Domain:

Enumerated_Domain_Value: 4040

Enumerated_Domain_Value_Definition:

DZs - Metamorphosed sedimentary rocks (Devonian to Proterozoic); NSACLASS = 5561

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:

Unrepresentable_Domain:

SOURCE values: BR003, BT004, BV003, CH003, CI006, CO003, CS003, CY006, FY004, LG005, TN009, and WI005, are defined as: Till, A.B., Dumoulin, J.A., Phillips, J.D., Stanley, R.G., Crews, Jesse, in prep., Generalized bedrock geologic map, Yukon Flats region, east-central Alaska: U.S. Geological Survey Scientific Investigations Series Map, SIM-XXX, 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 <cov>.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 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: 4

Enumerated_Domain_Value_Definition:

Normal fault, location certain; 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: 10

Enumerated_Domain_Value_Definition: Thrust fault, location certain, teeth on right from origin

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: 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: 53

Enumerated_Domain_Value_Definition: Concealed thust fault

Enumerated_Domain:

Enumerated_Domain_Value: 60

Enumerated_Domain_Value_Definition: Concealed fault, sense of displacement uncertain

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 2006-1304

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, produce, 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, reommendation, 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/2006/1304/>

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