@misc{indiciae5072df22fcac,
  title = {Preliminary reconnaissance geologic map of the Cleveland Mountain and north half of the Ravenna quadrangles (1:48,000), western Montana},
  author = {C. A. Wallace and Montis Ruhl Klepper},
  year = {1976},
  doi = {10.3133/ofr76527},
  url = {https://pubs.usgs.gov/publication/ofr76527},
  note = {Source identifier: ofr76527}
}