@misc{indiciaebcb69a633080,
  title = {Active-, inactive-, and abandoned-mine information and selected geochemical data for the state of Montana},
  author = {Jean L. Ryder},
  year = {1995},
  doi = {10.3133/ofr95229},
  url = {https://pubs.usgs.gov/publication/ofr95229},
  note = {Source identifier: ofr95229}
}