@misc{indiciae1e94e263da29,
  title = {Generalized geologic map of part of the upper Animas River watershed and vicinity, Silverton, Colorado},
  author = {D.B. Yager and D. J. Bove},
  year = {2002},
  doi = {10.3133/mf2377},
  url = {https://pubs.usgs.gov/publication/mf2377},
  note = {Source identifier: mf2377}
}