@misc{indiciaee1726e743a25,
  title = {Preliminary geologic map of the Cowdrey quadrangle, North Park, Jackson County, Colorado},
  author = {Douglas M. Kinney and William J. Hail and Thomas A. Steven},
  year = {1970},
  doi = {10.3133/ofr70186},
  url = {https://pubs.usgs.gov/publication/ofr70186},
  note = {Source identifier: ofr70186}
}