Reger, R.D. Solie, D.N. 2008 vector digital data Preliminary Interpretive Report PIR 2008-3C Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 10 p., 2 sheets, scale 1:63,360 http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=17621 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. 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. 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 1980 2006 2007 ground condition Complete Unknown -145.92459 -144.00000 64.12621 63.49725 None Engineering Geology Gasline Geologic Hazards Geologic Map Ice Permafrost Pingos Proposed Natural Gas Pipeline Subsidence Thaw Lakes Transportation Corridor None Alaska Highway Corridor Big Delta Big Delta Quadrangle Delta Junction Delta River Lake George Mount Hayes Quadrangle Tanana River Dot Lake None Holocene Quaternary Pleistocene 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). 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. State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys GIS Data Manager/Cartographer mailing and physical

3354 College Road

Fairbanks AK 99709-3707 (907) 451-5029 (907) 451-5020 (907) 451-5050 dggspubs@dnr.state.ak.us You may view our web site at http://www.dggs.dnr.state.ak.us 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. 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. ArcGIS 9.+, Adobe Acrobat Reader, and any text editor. Reger, R.D. Stevens, D.S.P. Solie, D.N. 2008 map Preliminary Interpretive Report PIR 2008-3a Fairbanks, AK, UAS Alaska Division of Geological & Geophysical Surveys 2 sheets, scale 1:63,360 Reger, R.D. Solie, D.N. 2008 tabular digital data Preliminary Interpretive Report PIR 2008-3B Fairbanks, AK, USA Alaska Division of Geological & Geophysical Surveys 2 sheets, scale 1:63,360 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. Polygon topology is present on appropriate coverages; others are line or point coverages. 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. 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. Kreig, R.A. Reger, R.D. 1976 book chapter Stroudsburg, Pa., USA Dowden, Hutchinson, and Ross p. 55–76 Coates, D. R. 1976 document Stroudsburg, Pa., USA Dowden, Hutchinson, and Ross paper Unknown Unknown publication date Kreig and Reger, 1976 Contains permafrost evaluation for trans-Alaska oil pipeline Kreig, R.A. Reger, R.D. 1982 document Geologic Report GR-66 Fairbanks, AK, USA Alaska Division of Geological & Geophysical Surveys 149 p. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=426 paper Unknown Unknown publication date Kreig and Reger, 1982 Contains permafrost evaluation for trans-Alaska oil pipeline Ferrians, O.J., Jr. 1965 map Miscellaneous Geologic Investigations Map I-445 Menlo Park, CA, USA U.S. Geological Survey 1 map sheet, scale 1:2,500,000 2500000 paper Unknown Unknown publication date Ferrians, 1965 Generalized permafrost map of Alaska Péwé, T.L. Reger, R.D. 1983 book chapter Guidebook Guidebook 1 Fairbanks, AK, USA Alaska Division of Geological & Geophysical Surveys p. 5-45 Péwé, T.L., ed. Reger, R.D., ed. 1983 document Guidebook Guidebook 1 Fairbanks, AK, USA Alaska Division of Geological & Geophysical Surveys 263 p., 1 sheet, scale 1:250,000 http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=263 paper Unknown Unknown publication date Pewe and Reger, 1983 Contains information about permafrost and Quaternary geology of Tanana Valley 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. Kreig and Reger, 1976 Kreig and Reger, 1982 Ferrians, 1965 Pewe and Reger, 1983 2007 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. 2008 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. 2007 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. 2008 Universal Transverse Mercator 6 0.999600 -147.000000 0 500000.000000 0 coordinate pair 0.0000001 0.0000001 meters PermafrostPolygons Universal Transverse Mercator 6 0.999600 -147.000000 0 500000.000000 0 coordinate pair 0.0000001 0.0000001 meters Pingos Universal Transverse Mercator 6 0.999600 -147.000000 0 500000.000000 0 coordinate pair 0.0000001 0.0000001 meters Outline Universal Transverse Mercator 6 0.999600 -147.000000 0 500000.000000 0 coordinate pair 0.0000001 0.0000001 meters Locality North American Datum of 1927 Clarke 1866 6378206.4 294.978698 PermafrostPolygons PermafrostPolygons.shp permafrost map unit polygons Alaska Division of Geological & Geophysical Surveys MapUnit Label of map unit shown on map signifying interpreted extent and amount of permafrost within polygon. Alaska Division of Geological & Geophysical Surveys PIR2008-3C_codeset.pdf Alaska Division of Geological & Geophysical Surveys http://www.dggs.dnr.state.ak.us/metadata/PIR2008-3C_codeset.pdf Locality Locality.shp Points identifying locations discussed in the report (PIR 2008-3c). Alaska Division of Geological & Geophysical Surveys locality Locality label as shown on map Alaska Division of Geological & Geophysical Surveys A, B, C, D LocLat Latitude of locality Alaska Division of Geological & Geophysical Surveys, see Spatial_Reference_Information 63.5 64.0 decimal degrees LocLong Longitude of locality Alaska Division of Geological & Geophysical Surveys, see Spatial_Reference_Information -146.0 -144.0 decimal degrees LocNorthing northing Alaska Division of Geological & Geophysical Surveys, see Spatial_Reference_Information 7044293 7111325 meters LocEasting easting Alaska Division of Geological & Geophysical Surveys, see Spatial_Reference_Information 552363 6449300 meters Quadrangle quadrangle USGS topographic quadrangle sheets 1:63,360 quadrangle Pingo Pingo.shp point location of pingos Alaska Division of Geological & Geophysical Surveys Id symbol identifying location of pingo on map Alaska Division of Geological & Geophysical Surveys pingos shown on map Outline Outline.shp polygone outlining boundary of map area Alaska Division of Geological & Geophysical Surveys shape shape of polygon outlining map boundary Alaska Division of Geological & Geophysical Surveys shape of map area State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Natural Resource Technician mailing and physical

3354 College Road

Fairbanks AK 99709-3707 USA 907-451-5020 None available. 907-451-5050 dggspubs@dnr.state.ak.us 8 am to 4:30 pm, Monday through Friday, except State holidays Please view our Web site (http://www.dggs.dnr.state.ak.us) for the latest information on available data. Please contact us using the e-mail address provided above when possible. Preliminary Interpretive Report PIR 2008-3C 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. 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. Printed publication can be purchased for $28, (contact information below) plus shipping if mailed. PDF 1.6 No compression applied http://www.dggs.dnr.state.ak.us/pubs/pubs.jsp ArcGIS Shapefile ESRI ArcGIS 9.x No compression applied CD-ROM Joliet Digital files on CD-ROM are available for $10.00 (contact information below). Scanned images of these products may be viewed online or downloaded for free from the DGGS Web site. Order by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. Two weeks unless special arrangements are made and an express fee is paid. 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. 20080930 State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Metadata Manager mailing and physical address

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Fairbanks AK 99709-3707 USA 907-451-5039 907-451-5050 dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays. Please contact us through the e-mail address above whenever possible. FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 none 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.