@misc{indiciae74096e336ca9,
  title = {Claim map, Roc Creek quadrangle, Montrose County, Colorado},
  author = {Raymond Dewey Sample and Howard F. Albee},
  year = {1961},
  doi = {10.3133/ofr61149},
  url = {https://pubs.usgs.gov/publication/ofr61149},
  note = {Source identifier: ofr61149}
}