To link to this resource use: https://libraries.indiana.edu/resources/ngmd
The National Geologic Map Database contains information about geology-related printed maps and GIS data produced by Federal and state agencies.
Coverage: 1825 to Present - Updated regularly
Vendor: U.S. Geological Survey
Producer: U.S. Geological Survey
Interlibrary Loan Type: Not Permitted
Simultaneous User Limit: Unlimited simultaneous users