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USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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
Geologic Maps
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Map Releases
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Topo Maps
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Structure contour maps on the base of Mississippian strata and the top of upper Cambrian strata, Springfield 1 degree by 2 degrees Quadrangle, Missouri Structure contour maps on the base of Mississippian strata and the top of upper Cambrian strata, Springfield 1 degree by 2 degrees Quadrangle, Missouri
This publication is part of a folio of maps of the Springfield 10° × 20° quadrangle, Missouri, prepared under the Conterminous United States Mineral Assessment Program of the U.S. Geological Survey. Other publications in this folio to date include U.S. Geological Survey Miscellaneous Field Studies Maps MF-1830-A through F (Erickson and others, 1985; Whitfield, 1986; Wharton, 1987...
Summary and interpretation of geochemical maps for stream sediment and heavy mineral concentrate samples, Mount Hayes Quadrangle, eastern Alaska Range, Alaska Summary and interpretation of geochemical maps for stream sediment and heavy mineral concentrate samples, Mount Hayes Quadrangle, eastern Alaska Range, Alaska
This report and accompanying maps summarize the results of geochemical exploration studies in the Mount Hayes quadrangle, Alaska. This is one of a series of maps and reports on the geological, geochemical, and geophysical studies of the quadrangle prepared as part of the Alaskan Mineral Resource Assessment Program (AMRAP) of the U.S. Geological Survey. These maps are part of the Mount...
Summary geochemical maps of the Harrison 1° x 2° quadrangle, Arkansas and Missouri Summary geochemical maps of the Harrison 1° x 2° quadrangle, Arkansas and Missouri
This map is the first in a folio of maps of the Harrison 1° x 2° quadrangle, Arkansas and Missouri, prepared under the Conterminous United States Mineral Assessment Program. Additional maps showing various other geologic aspects of the Harrison quadrangle will be published as U.S. Geological Survey Miscellaneous Field Studies Maps bearing the same serial number with different letter...