| Online link | https://doi.org/10.3133/sim3291 |
|---|---|
| Description | This map depicts the fundamental geologic features for the western part of the Fortymile mining district and delineates the location of known bedrock mineral prospects and their relationship to rock types and structural features. |
| Originators | Day, Warren C., O'Neill, J. Michael, Dusel-Bacon, Cynthia, Aleinikoff, John N., Siron, Christopher R. |
| Publication | U.S. Geological Survey Scientific Investigations Map 3291 |