Maps

Fundamental Science Practices

USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.

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

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January 1, 1994

Correlation chart of lower and upper Cretaceous Blackleaf Formation, eastern Pioneer Mountains, southwestern Montana, to Drummond, central-western Montana Correlation chart of lower and upper Cretaceous Blackleaf Formation, eastern Pioneer Mountains, southwestern Montana, to Drummond, central-western Montana

No abstract available.

January 1, 1994

Correlations of subsurface rocks in the southeast Georgia Embayment, U.S. south Atlantic continental shelf Correlations of subsurface rocks in the southeast Georgia Embayment, U.S. south Atlantic continental shelf

No abstract available.

January 1, 1994

Generalized geologic map of the Iditarod quadrangle, Alaska, showing potassium-argon, major-oxide, trace-element, fossil, paleocurrent, and archaeological sample localities Generalized geologic map of the Iditarod quadrangle, Alaska, showing potassium-argon, major-oxide, trace-element, fossil, paleocurrent, and archaeological sample localities

No abstract available.

January 1, 1994

Geologic and mineral resource potential map of the Salmon River and Cove Mountain additions to the Frank Church-River of No Return Wilderness, Idaho County, Idaho Geologic and mineral resource potential map of the Salmon River and Cove Mountain additions to the Frank Church-River of No Return Wilderness, Idaho County, Idaho

No abstract available.

January 1, 1994

Geologic map of Cretaceous Strata between Birch Creek and Brownes Creek, eastern flank of Pioneer Mountains, Beaverhead County, Montana Geologic map of Cretaceous Strata between Birch Creek and Brownes Creek, eastern flank of Pioneer Mountains, Beaverhead County, Montana

No abstract available.

January 1, 1994

Geologic map of part of the San Fernando de Apure 2 degrees by 3 degrees Quadrangle, Venezuela Geologic map of part of the San Fernando de Apure 2 degrees by 3 degrees Quadrangle, Venezuela

No abstract available.

January 1, 1994

Geologic map of Precambrian rocks of the Sierra Madre, Carbon County, Wyoming, and Jackson and Routt counties, Colorado Geologic map of Precambrian rocks of the Sierra Madre, Carbon County, Wyoming, and Jackson and Routt counties, Colorado

No abstract available.

January 1, 1994

Geologic map of science study area 4, Chasma Boreale Region of Mars Geologic map of science study area 4, Chasma Boreale Region of Mars

This map is one is a series of 1:500,000 scale maps initiated by the National Aeronautics and Space Administration to investigate Science Study Areas (selected area of scientific interest) on Mars (fig. 1). The Chasma Boreale region merits detailed geologic study because it contains parts of (1) the north polar ice cap, which is composed of water ice with lesser amounts of carbon dioxide...

January 1, 1994