@misc{indiciae53db0d58c20b,
  title = {Geologic map of the South Mamm Peak Quadrangle, Garfield and Mesa counties, Colorado},
  author = {J. R. Donnell and W. E. Yeend and M. C. Smith},
  year = {1990},
  doi = {10.3133/mf2113},
  url = {https://pubs.usgs.gov/publication/mf2113},
  note = {Source identifier: mf2113}
}