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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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Aeromagnetic and interpretation map of the King Range and Chemise Mountain Instant Study Areas, Northern California

The data for the aeromagnetic map (sheet 1) of the King Range and Chemise Mountain areas wre collected in 1978 and compiled at a scale of 1:62,500. Northeast-southwest traverses were spaced at 0.8-km intervals at an altitude for 300 m above the ground surface and 600 m above the ocean because of cliffs along the shore. The contour interval is 10 of or 50γ, depending on the steepness of local gradi

Aeromagnetic map of Georgia

No abstract available.

Aeromagnetic map of Georgia: In color

No abstract available.

Aeromagnetic map of Montana: In color

No abstract available.

Bathymetric maps of the Gulf of California

No abstract available.