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This dataset consists of a geo-referenced digital map and attribute data
derived from the publication "Permafrost map of Alaska."
The map is presented at a scale of 1:2,500,000 and shows the correlation
of physiographic province to presence of permafrost across the state of
Alaska.
The provinces are represented by polygons. The linework was captured by
hand digitizing the source map, Ferrians, O.J., 1965, Permafrost map of
Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations
Map I-445. Scale 1:2,500,000.
Data Provided By:
U.S. Geological Survey EROS Alaska Field Office
Content date:
1/1/1965
Citation:
Title: Alaska (USA) Permafrost Regions Credits: U.S. Geological Survey EROS Alaska Field Office Publication Date: 1/1/1965 Publisher: USGS Other Citation Info: Ferrians, O.J., 1965, Permafrost map of Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-445. Scale 1:2,500,000.
Layers in this dataset are based on combinations of the following options.
You may choose from these options to select a specific layer on the map page.
The Conservation Biology Institute (CBI) provides scientific expertise to support the conservation and recovery of biological diversity in its natural state through applied research, education, planning, and community service.