Maps
Since the 1800s, the USGS and its partners, the State Geological Surveys, have been producing high quality, standardized geologic maps of the Nation. In January 2016, the U.S. Geological Survey released the first ever digital geologic map of Alaska. This map reflects more than a century of work and provides a visual context for the abundant mineral and energy resources found throughout the state.
Bedrock geologic map of the Seward Peninsula, Alaska, and accompanying conodont data
Surficial geologic map of the Noatak National Preserve, Alaska
The surficial geologic map of the Noatak National Preserve (NNP) is a compilation that incorporates portions of four published USGS maps (Hamilton, 1980, 1981, 1984a,b), a USGS Open-File Report (Hamilton, 2003), and unpublished field mapping. It covers an area of about 28,700 km2, and includes parts of eight 1:250,000-scale quadrangles. The mapped area generally terminates at NNP boundaries, which