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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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Aeromagnetic map of Iowa Aeromagnetic map of Iowa

No abstract available.

Aeromagnetic map of the Tanacross Quadrangle, Alaska Aeromagnetic map of the Tanacross Quadrangle, Alaska

The aeromagnetic map (sheet 1) of the Tanacross quadrangle was prepared in 1971 and subsequently released by the State of Alaska as an open-file map (Alaska Div. Geology and Geophysics, 1973). The data were collected along north-south traverses spaced at 1.6-km intervals and from an altitude of 300 m above the ground. Compilation was originally in the form of 30 by 15-minute quadrangles...

Aeromagnetic map of Utah Aeromagnetic map of Utah

No abstract available.
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