@misc{indiciaee4e112219ae6,
  title = {Geochemical processes in ground water resulting from surface mining of coal at the Big Sky and West Decker Mine areas, southeastern Montana},
  author = {D.W. Clark},
  year = {1995},
  doi = {10.3133/wri954097},
  url = {https://pubs.usgs.gov/publication/wri954097},
  note = {Source identifier: wri954097}
}