Skip to main content
U.S. flag

An official website of the United States government

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. 

Filter Total Items: 9586

Heavy metals in stream sediment, west-central Maine Heavy metals in stream sediment, west-central Maine

This map presents the initial results of a geochemical reconnaissance of stream sediment in west-central Maine. The area covered by this map corresponds approximately to the area covered by sheets 2 and 4 of the geologic and aeromagnetic map of northern Maine (Boucot and others, 1960).

Iron occurrences in Alaska Iron occurrences in Alaska

No abstract available.
Was this page helpful?