@misc{indiciae00e1bff0bace,
  title = {USGS Abandoned Mine Lands Research Presented at the NAAMLP Meeting in Billings, Mont., Sept. 25, 2006},
  author = {Kate Johnson and Stan Church},
  year = {2006},
  doi = {10.3133/ofr20061301},
  url = {https://pubs.usgs.gov/publication/ofr20061301},
  note = {Source identifier: ofr20061301}
}