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National geologic map database

Provides access to maps and other spatially referenced data for geology, geophysics, marine geology, earth resources, hazards, geochemistry, geochronology, and paleontology. Includes links to other sources of topographic and related maps, other earth science databases, and additional Web resources related to geology. Can search by title, author, map number, theme, location, scale, date, format, and publisher. Can also use map interface to find geologic maps and historic topographic maps. United States Geological Survey

Date Coverage: 
1800 to present
Content Availability: 
Multimedia

Resource Types: