| Online link | https://mrdata.usgs.gov/geology/us/ |
|---|---|
| Description | A digital version of the Geologic Map of the United States, originally published at a scale of 1:2,500,000 (King and Beikman, 1974b). It excludes Alaska and Hawaii. |
| Originators | Schruben, Paul G.; Arndt, Raymond E.; and Bawiec, Walter J. |
| Publication | U.S. Geological Survey Digital Data Series 11 |
| Metadata | Questions and answers |
