@misc{indiciaeb66e59d70708,
  title = {Geology of Bull Canyon quadrangle, Montrose and San Miguel counties, Colorado},
  author = {Fred W. Cater},
  year = {1953},
  doi = {10.3133/tem692},
  url = {https://pubs.usgs.gov/publication/tem692},
  note = {Source identifier: tem692}
}