@misc{indiciae8ab75e12d1b9,
  title = {Preliminary unedited geologic map of the Confederate Gulch area, Broadwater and Meagher counties, Montana},
  author = {James Louis Gualtieri},
  year = {1975},
  doi = {10.3133/ofr75211},
  url = {https://pubs.usgs.gov/publication/ofr75211},
  note = {Source identifier: ofr75211}
}