@misc{indiciaefc7097b0419b,
  title = {Extreme acid mine drainage from a pyritic massive sulfide deposit, the Iron Mountain end-member},
  author = {Charles N. Alpers and D. Kirk Nordstrom and J. Spitzley},
  year = {2003},
  url = {https://pubs.usgs.gov/publication/70199419},
  note = {Source identifier: 70199419}
}