@misc{indiciae6413bedb89cc,
  title = {Compilation copy of geologic map of part of the Saypo quadrangle, Montana},
  author = {Charles F. Deiss},
  year = {1955},
  doi = {10.3133/ofr5537},
  url = {https://pubs.usgs.gov/publication/ofr5537},
  note = {Source identifier: ofr5537}
}