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Maps

Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. They also organize, maintain, and publish the geospatial baseline of the Nation's topography, natural landscape, built environment and more.

Geologic Maps

Geologic Maps

Map Releases

Map Releases

Topo Maps

Topo Maps

Volcanic Maps

Volcanic Maps

All Maps

Filter Total Items: 9495

Map showing ground water conditions in the Fairbanks D-2 SE Quadrangle, Alaska

The primary controlling factors determining ground-water conditions in the Fairbanks D-2 SE quadrangle are (1) topographic position, (2) water-bearing characteristics of the rocks, and (3) distribution of permafrost. These interrelated factors generally limit the conditions in any particular area. Basic data from the geologic map of the Fairbanks D-2 SE quadrangle (Map I-942, Pewe and others, in p

Map showing paleocurrent and clast-size data from the Devonian-Mississippian Endicott Group, northern Alaska

The Devonian-Mississippian Endicott Group (Tailleur and others, 1967) is an important geologic unit in the Brooks Range of northern Alaska. It reflects a major tectonic event in the middle and late Paleozoic history of the North American Cordillera. Tailleur and Brosge (1970) interpreted the Endicott as a clastic wedge derived from land to the north during the Late Devonian and from land to the no