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GIS Data

USGS is a primary source of geographic information system (GIS) data. Our data and information is presented in spatial and geographic formats, including The National Map, Earth Explorer, GloVIS, LandsatLook, and much more. Explore GIS Data Maps. 

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Geologic interpretation of aeromagnetic map of the Seward and Blying Sound quadrangles, Alaska Geologic interpretation of aeromagnetic map of the Seward and Blying Sound quadrangles, Alaska

An aeromagnetic survey of the Seward and northern part of the Blying Sound quadrangles was flown by Geometrics, Inc., during 1975-77 to provide magnetic data to aid in an appraisal of the mineral resources. Background details of the regional geology and major structures are described in a companion report by Tysdal and Case (1979), and interpretation of the gravity data are described in...

Geologic interpretation of the gravity anomaly map of the Seward and Blying Sound quadrangles, Alaska Geologic interpretation of the gravity anomaly map of the Seward and Blying Sound quadrangles, Alaska

For more than 20 years, gravity surveys have been conducted in the vicinity of Prince William Sound, the epicentral region of the great Alaska earthquake of March 27, 1964. Some of the major regional gravity anomalies were outlined by Thiel, Ostenso, Bonini (1960), and additional anomalies were defined by pre- and post-earthquake gravity studies reported by Barnes and Allen (1965) and...

Geologic map and coal resources of the Emery West Quadrangle, Emery and Sevier counties, Utah Geologic map and coal resources of the Emery West Quadrangle, Emery and Sevier counties, Utah

No abstract available.

Geologic map and coal resources of the Flagstaff Peak quadrangle, Emery, Sanpete, and Sevier Counties, Utah Geologic map and coal resources of the Flagstaff Peak quadrangle, Emery, Sanpete, and Sevier Counties, Utah

No abstract available.

Geologic map and coal sections of the Forks Ranch quadrangle, Big Horn County, Montana Geologic map and coal sections of the Forks Ranch quadrangle, Big Horn County, Montana

The Forks Ranch quadrangle lies on the gently-dipping east flank of the Powder River basin, near its trough line.

Geologic map and coal sections of the Quietus Quadrangle, Big Horn and Powder River counties, Montana Geologic map and coal sections of the Quietus Quadrangle, Big Horn and Powder River counties, Montana

No abstract available.
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