@misc{indiciae21dd10867a44,
  title = {Geologic map of the Bull Lake East quadrangle, Fremont County, Wyoming},
  author = {Gerald Martin Richmond and John F. Murphy},
  year = {1965},
  doi = {10.3133/gq431},
  url = {https://pubs.usgs.gov/publication/gq431},
  note = {Source identifier: gq431}
}