Metadata: Identification_Information: Citation: Citation_Information: Originator: Reger, R.D. Originator: Solie, D.N. Publication_Date: 2008 Title: Reconnaissance interpretation of permafrost, Alaska Highway corridor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3C Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 10 p., 2 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/17621 Description: Abstract: During 2006 and 2007 the Alaska Division of Geological & Geophysical Surveys conducted reconnaissance interpretive mapping of permafrost in Alaska Highway Corridor Segment 1, which straddles the Alaska Highway through the Tanana River valley from Delta Junction to the eastern boundary of the Mt. Hayes Quadrangle. Primarily, we inferred the extent of permafrost and ice content by interpreting ~1:63,360-scale, false-color infrared aerial photographs taken in August 1980. Purpose: This report and map are a part of ADGGS'sAlaska Natural Gas Pipeline Geology and Geohazards project, showing an interpretive evaluation of the presence or absence of permafrost in the study area. The study was done in anticipation of the proposed natural gas pipeline along the Alaska Highway corridor, as a preliminary look at the expected distribution of permafrost based on air photo interpretation. Supplemental_Information: The layers listed below are present as ArcGIS shape files. To enhance print quality, this publication utilized a vector topography data set. The topography data set is not included with this release. Attribute information for the following layers (entities) is included in this metadata file under the "Entity_and_Attribute_Information" section. Basic unit information is also included in the unit code set file "PIR2008-3C_codeset.pdf". Each layer is listed and described in detail under its own heading starting "Entity_Type_Label."Layers include: >PermafrostPolygons permafrost map unit polygons >Pingo locations of pingos >Locality locations of five sites discussed in the text >Outline outline shape of the study area Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1980 Single_Date/Time: Calendar_Date: 2006 Single_Date/Time: Calendar_Date: 2007 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -145.92459 East_Bounding_Coordinate: -144.00000 North_Bounding_Coordinate: 64.12621 South_Bounding_Coordinate: 63.49725 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Engineering Geology Theme_Keyword: Gasline Theme_Keyword: Geologic Hazards Theme_Keyword: Geologic Map Theme_Keyword: Ice Theme_Keyword: Permafrost Theme_Keyword: Pingos Theme_Keyword: Proposed Natural Gas Pipeline Theme_Keyword: Subsidence Theme_Keyword: Thaw Lakes Theme_Keyword: Transportation Corridor Place: Place_Keyword_Thesaurus: None Place_Keyword: Alaska Highway Corridor Place_Keyword: Big Delta Place_Keyword: Big Delta Quadrangle Place_Keyword: Delta Junction Place_Keyword: Delta River Place_Keyword: Lake George Place_Keyword: Mount Hayes Quadrangle Place_Keyword: Tanana River Place_Keyword: Dot Lake Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: Holocene Temporal_Keyword: Quaternary Temporal_Keyword: Pleistocene Access_Constraints: This report, map, and/or dataset are available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below). Use_Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Position: GIS Data Manager/Cartographer Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Contact_Voice_Telephone: (907) 451-5029 Contact_Voice_Telephone: (907) 451-5020 Contact_Facsimile_Telephone: (907) 451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Contact_Instructions: You may view our web site at http://www.dggs.alaska.gov for the latest information on available data.Please e-mail your questions and data requests when possible since our web site and e-mail address will remain current even if our phone number and mailing address change. Data_Set_Credit: This research was supported by Alaska State Capital Improvement Projects funding.Additional Acknowledgments: Most of the background knowledge for this permafrost interpretation was learned during preconstruction geotechnical investigations for the trans-Alaska oil pipeline system (Kreig and Reger, 1976, 1982), with input based on early investigations by Alyeska Pipeline Service Company, R & M Consultants, Inc., and especially Mike Metz and Ray Kreig. Subsurface water well data were provided by Steven Squires. De Anne Stevens, Gary Carver and Santosh Panda collaborated in field observations and discussions. The report was reviewed by De Anne S.P. Stevens. Native_Data_Set_Environment: ArcGIS 9.+, Adobe Acrobat Reader, and any text editor. Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Stevens, D.S.P. Originator: Solie, D.N. Publication_Date: 2008 Title: Surficial-geologic map, Alaska Highway Corridor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3a Publication_Information: Publication_Place: Fairbanks, AK, UAS Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:63,360 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Solie, D.N. Publication_Date: 2008 Title: Engineering-geology map, Alaska Highway Corriodr, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: tabular digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3B Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:63,360 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The permafrost interpretations were first hand-drawn, using a magnifying stereoscope, onto acetate air-photo overlays at the scale of the air-photos (approximately inch-to-the-mile). The air-photos were taken in August 1980. The presence or former presence of permafrost and the ground-ice content were inferred from several indicators, including vegetation, slope and aspect, landform, soil type, local drainage, and terrain features, such as open-system pingos, polygonal ground, and thermokarst pits, gullies, and ponds (Kreig and Reger, 1982). Permafrost classifications in areas that were burned just prior to August 1980 are less reliable than in unburned areas because the vegetation was destroyed or significantly altered and, in these areas, interpretation of permafrost was based only on landform and setting, which are less diagnostic than vegetation.During summer field work in 2007, a limited number of test pits was dug to verify initial interpretations. The accuracy of the map unit boundary locations vary due to the scale and interpretive nature of the mapping, but are expected to be accurate to at least 500 ft. Map units labeled with a "?" are considered to have an uncertain assignation due to conditions such as in recently burned areas, areas in which considerable surface water is present on landforms that woudl normally be frozen, in artificial clearings, and in Delta-age kettle fillings with uncertain thickness of peat. Logical_Consistency_Report: Polygon topology is present on appropriate coverages; others are line or point coverages. Completeness_Report: This dataset includes coverages that contain information about the interpreted presence and ice content of permafrost in the map area, pingoes, and localities discussed in the report. Subsurface permafrost data were not available for use in creating this map coverage. This report uses the definition of permafrost as rock or soil that remains continuously colder than 0 degrees C (32 degrees F) for two years or longer. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The permafrost interpretations were first hand-drawn, using a magnifying stereoscope, onto acetate air-photo overlays at the scale of the air-photos (approximately inch-to-the-mile). The accuracy of the map unit boundary locations vary due to the scale and interpretive nature of the mapping, but are expected to be accurate to at least 500 ft.The acetate overlays were then individually scanned and orthorectified, using Orthomapper, v. 3.6, and georeferenced. The air-photos were orthorectified, photomosaiced and georeferenced. Permafrost unit boundaries were digitized on-screen into ArcGIS from the orthorectified overlays at a scale more detailed than 1:63,360, using a combination of a USGS topographic 1:63.360 map layer and the air-photo photomosaic layer to verify the position of the lines. Location of points on map that are discussed in the text were recorded usinga Garmin GPS model 76CSx with a horizontal error of 4 meters or less. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Kreig, R.A. Originator: Reger, R.D. Publication_Date: 1976 Title: Preconstruction terrain evaluation for the trans-Alaska pipeline project Geospatial_Data_Presentation_Form: book chapter Publication_Information: Publication_Place: Stroudsburg, Pa., USA Publisher: Dowden, Hutchinson, and Ross Other_Citation_Details: p. 55–76 Larger_Work_Citation: Citation_Information: Originator: Coates, D. R. Publication_Date: 1976 Title: Geomorphology and engineering Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Stroudsburg, Pa., USA Publisher: Dowden, Hutchinson, and Ross Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: Unknown Ending_Date: Unknown Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Kreig and Reger, 1976 Source_Contribution: Contains permafrost evaluation for trans-Alaska oil pipeline Source_Information: Source_Citation: Citation_Information: Originator: Kreig, R.A. Originator: Reger, R.D. Publication_Date: 1982 Title: Air-photo analysis and summary of landform soil properties along the route of the Trans-Alaska Pipeline System Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Geologic Report Issue_Identification: GR-66 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 149 p. Online_Linkage: http://dx.doi.org/10.14509/426 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: Unknown Ending_Date: Unknown Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Kreig and Reger, 1982 Source_Contribution: Contains permafrost evaluation for trans-Alaska oil pipeline Source_Information: Source_Citation: Citation_Information: Originator: Ferrians, O.J., Jr. Publication_Date: 1965 Title: Permafrost map of Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Miscellaneous Geologic Investigations Map Issue_Identification: I-445 Publication_Information: Publication_Place: Menlo Park, CA, USA Publisher: U.S. Geological Survey Other_Citation_Details: 1 map sheet, scale 1:2,500,000 Source_Scale_Denominator: 2500000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: Unknown Ending_Date: Unknown Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Ferrians, 1965 Source_Contribution: Generalized permafrost map of Alaska Source_Information: Source_Citation: Citation_Information: Originator: Péwé, T.L. Originator: Reger, R.D. Publication_Date: 1983 Title: Middle Tanana River valley Geospatial_Data_Presentation_Form: book chapter Series_Information: Series_Name: Guidebook Issue_Identification: Guidebook 1 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: p. 5-45 Larger_Work_Citation: Citation_Information: Originator: Péwé, T.L., ed. Originator: Reger, R.D., ed. Publication_Date: 1983 Title: Guidebook to permafrost and Quaternary geology along the Richardson and Glenn Highways between Fairbanks and Anchorage, Alaska Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Guidebook Issue_Identification: Guidebook 1 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 263 p., 1 sheet, scale 1:250,000 Online_Linkage: http://dx.doi.org/10.14509/263 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: Unknown Ending_Date: Unknown Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Pewe and Reger, 1983 Source_Contribution: Contains information about permafrost and Quaternary geology of Tanana Valley Process_Step: Process_Description: Aerial photograph interpretation- Stereo pairs of ~1:63,360-scale, false-color infrared aerial photographs taken in August 1980 were used to interpret the presence and condition of permafrost.Interpreted proxy data include vegetation, slope and aspect, landforms, geology, local drainage, and terrain features.Unit boundaries were drawn by hand onto acetate overlays, using a magnifying stereoscope. Overlays were registered to aerial photos using tick marks on the photos. Digital aerial photos and scanned overlays were individually orthorectified using Orthomapper 3.6. Source_Used_Citation_Abbreviation: Kreig and Reger, 1976 Source_Used_Citation_Abbreviation: Kreig and Reger, 1982 Source_Used_Citation_Abbreviation: Ferrians, 1965 Source_Used_Citation_Abbreviation: Pewe and Reger, 1983 Process_Date: 2007 Process_Step: Process_Description: Digital cartography- The acetate overlays were then individually scanned and orthorectified, using Orthomapper, v. 3.6, and georeferenced. The air-photos were orthorectified, photomosaiced and georeferenced. Permafrost unit boundaries were digitized on-screen into ArcGIS from the orthorectified overlays at a scale more detailed than 1:63,360, using a combination of a USGS topographic 1:63.360 map layer and the air-photo photomosaic layer to verify the position of the lines. Permafrost map polygons and lines were then edited and attributed using ArcMap 9.0. Process_Date: 2008 Process_Step: Process_Description: Fieldwork - In July-August 2007, to verify aerial photo interpretations, localities of varying permafrost conditions were visited in the field to observe surface conditions. In addition, several pits were dug using shovels to maximum depth of 1.5 meters to observe soil profiles and whether frozen soil was present. Process_Date: 2007 Process_Step: Process_Description: Metadata creation - Metadata were assembled by D.N. Solie to FGDC Standards using Metavist 1.2, DGGS 7.05, a data entry program for FGDC metadata with XML output. Process_Date: 2008 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: 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: 0.999600 Longitude_of_Central_Meridian: -147.000000 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0000001 Ordinate_Resolution: 0.0000001 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: PermafrostPolygons 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: 0.999600 Longitude_of_Central_Meridian: -147.000000 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0000001 Ordinate_Resolution: 0.0000001 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: Pingos 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: 0.999600 Longitude_of_Central_Meridian: -147.000000 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0000001 Ordinate_Resolution: 0.0000001 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: Outline 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: 0.999600 Longitude_of_Central_Meridian: -147.000000 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0000001 Ordinate_Resolution: 0.0000001 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: Locality Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.978698 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: PermafrostPolygons Entity_Type_Label: PermafrostPolygons.shp Entity_Type_Definition: permafrost map unit polygons Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: MapUnit Attribute_Definition: Label of map unit shown on map signifying interpreted extent and amount of permafrost within polygon. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Codeset_Domain: Codeset_Name: PIR2008-3C_codeset.pdf Codeset_Source: Alaska Division of Geological & Geophysical Surveys http://www.dggs.alaska.gov/metadata/PIR2008-3C_codeset.pdf Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: Locality Entity_Type_Label: Locality.shp Entity_Type_Definition: Points identifying locations discussed in the report (PIR 2008-3c). Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: locality Attribute_Definition: Locality label as shown on map Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: A, B, C, D Attribute: Attribute_Label: LocLat Attribute_Definition: Latitude of locality Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys, see Spatial_Reference_Information Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 63.5 Range_Domain_Maximum: 64.0 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: LocLong Attribute_Definition: Longitude of locality Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys, see Spatial_Reference_Information Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -146.0 Range_Domain_Maximum: -144.0 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: LocNorthing Attribute_Definition: northing Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys, see Spatial_Reference_Information Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7044293 Range_Domain_Maximum: 7111325 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: LocEasting Attribute_Definition: easting Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys, see Spatial_Reference_Information Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 552363 Range_Domain_Maximum: 6449300 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Quadrangle Attribute_Definition: quadrangle Attribute_Definition_Source: USGS topographic quadrangle sheets Attribute_Domain_Values: Unrepresentable_Domain: 1:63,360 quadrangle Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: Pingo Entity_Type_Label: Pingo.shp Entity_Type_Definition: point location of pingos Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: Id Attribute_Definition: symbol identifying location of pingo on map Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: pingos shown on map Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: Outline Entity_Type_Label: Outline.shp Entity_Type_Definition: polygone outlining boundary of map area Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: shape Attribute_Definition: shape of polygon outlining map boundary Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: shape of map area Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Position: Natural Resource Technician Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: 907-451-5020 Contact_TDD/TTY_Telephone: None available. Contact_Facsimile_Telephone: 907-451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Contact_Instructions: Please view our Web site (http://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. Resource_Description: Preliminary Interpretive Report PIR 2008-3C Distribution_Liability: The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product. Standard_Order_Process: Non-digital_Form: Current publication is available on paper. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. Fees: Printed publication can be purchased for $28, (contact information below) plus shipping if mailed. 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Turnaround: Two weeks unless special arrangements are made and an express fee is paid. Technical_Prerequisites: It is suggested that MapInfo users import ESRI shape files (if provided) due to the possibility of data loss when importing Arc Export .e00 files.Please check the MapInfo Web site (http://www.mapinfo.com/) for the latest documentation on importing Arc Export and/or ESRI shape files. Metadata_Reference_Information: Metadata_Date: 20080930 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical address Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: 907-451-5039 Contact_Facsimile_Telephone: 907-451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays. Contact_Instructions: Please contact us through the e-mail address above whenever possible. Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: If the user has modified the data in any way they are obligated to describe the types of modifications they have performed in the supporting metadata file. User specifically agrees not to imply that changes they made were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.