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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. 

Filter Total Items: 8997

Permian and Pennsylvanian rocks of southeastern Colorado and adjacent areas

No abstract available.

Preliminary report on the geology of the Scurry Reef in Scurry County, Texas

No abstract available.

Principal coal beds in the Buckhorn quadrangle, Breathitt, Leslie, and Perry Counties, Kentucky

This report on coal in the Buckhorn quadrangle, Kentucky, is the second of a series of preliminary reports published by the U.S. Geological Survey as part of a program of investigation of the geology and coal resources of eastern Kentucky.  The first report, Coal Investigations Map C5 (Johnston and Heck, 1950), described the Fire Clay and Whitesburg coals in the Hyden quadrangle.  The Buckhorn qua

Total intensity aeromagnetic and geologic map of east-central Itasca County, Minnesota

No abstract available.

Total intensity aeromagnetic and geologic map of northeastern Itasca County and southeastern Koochiching County, Minnesota: Relative to arbitrary datum

No abstract available.

Total intensity aeromagnetic and geologic map of northern Aitkin County, Minnesota

No abstract available.

Total intensity aeromagnetic and geologic map of parts of Kanabec, Mille Lacs, and Pine counties, Minnesota

No abstract available.

Total intensity aeromagnetic and geologic map of southeastern Itasca County, Minnesota

No abstract available.

Total intensity aeromagnetic and geologic map of southern Aitkin County and northern Mille Lacs County, Minnesota

No abstract available.

Aeromagnetic survey of part of Dickinson County, Michigan, with preliminary geologic interpretation

No abstract available.

Geologic environment map of alumina resources of the Columbia Basin

No abstract available.

Geologic map of bastnaesite deposits, Birthday claims, San Bernardino County, California

In April 1949 a deposit containing considerable quantities of the rare mineral bastnaesite - the fluorocarbonate of cerium, lanthanum, and other rare earths - was discovered near Mountain Pass, San Bernardino County, Calif.  Small quantities of bastnaesite have been found in several places in the United States, but this area is the first that offers promise of being a commercial source of cerium,