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

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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. They also organize, maintain, and publish the geospatial baseline of the Nation's topography, natural landscape, built environment and more.

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Filter Total Items: 9493

Geologic map of the western Kentucky fluorspar district

No abstract available.

Geology and coal deposits of the Linton quadrangle, Greene and Sullivan Counties, Indiana

The Linton quadrangle is the second of a series of quadrangles being mapped by the Division of Geology, Indiana Department of Conservation in cooperation with the United States Geological Survey, as part of a program of study and reappraisal of Indiana coal resources. The field work was done by the writer, assisted by Harold Hutchison, during the summer of 1948; final corrections to the map were m

Geology and coal resources of the Stonewall-Tercio area, Las Animas County, Colorado

The Stonewall-Tercio area lies along the western edge of the Trinidad coal field, Colorado, a part of the large Raton Mesa region of Colorado and New Mexico. Coal of Upper Cretaceous and early Tertiary age in that region has been utilized extensively for coking and for domestic heating. Present mining operations are limited, but mining is possible throughout much of the field.

Geology of anthracite in the east-central part of the Mount Carmel quadrangle, Pennsylvania

The Pennsylvania anthracite fields, the principal source of anthracite in North America, are in the eastern part of the Commonwealth of Pennsylvania. The coal occurs in four elongate areas - Northern, Western Middle, Eastern Middle, and Southern fields - that trend northeastward and lie in echelon arrangement. The fields range in length from 24 to 66 miles and in width from a fraction of a mile to

Geology of anthracite in the southwestern part of the Mount Carmel quadrangle, Pennsylvania

This report is the second to be prepared as a result of a geologic investigation of the anthracite fields of Pennsylvania begun after consultation with the Bureau of Topographic and Geologic Surveys of the Commonwealth of Pennsylvania.  This report and others in preparation will show (1) the location of coal outcrops, (2) the depth, pitch, and other structural features of representative coal beds,

Geology of DeBeque oil-shale area, Garfield and Mesa Counties, Colorado

No abstract available.

Geology of Dove Creek area Dolores and Montezuma Counties, Colorado

No abstract available.

Geology of the Arctic slope of Alaska

No abstract available.

Geology of the eastern part of the Centralia - Chehalis coal district, Lewis and Thurston Counties, Washington

This report gives the results of geologic investigations made in 1948 and 1949 in the eastern part of the Centralia-Chehalis coal district of southwest Washington. Detailed geologic mapping and stratigraphic studies were supplemented by core drilling. The core drilling tested the thickness and physical character of the individual coal beds and aided in determining the continuity of the beds. It is

Geology of the Hardin area, Big Horn and Yellowstone Counties, Montana

No abstract available.
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Yellowstone

Geology of the Moon Lake area, Duchesne County, Utah

No abstract available.

Geology of the region from Socorro and San Antonio east to Chupadera Mesa, Socorro County, New Mexico

No abstract available.
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