@misc{indiciae5d1de79ba6b7,
  title = {Geologic map of the Rapid City West quadrangle, Pennington County, South Dakota},
  author = {John Mark Cattermole},
  year = {1969},
  doi = {10.3133/gq828},
  url = {https://pubs.usgs.gov/publication/gq828},
  note = {Source identifier: gq828}
}