@misc{indiciae8cfee7d275ec,
  title = {Mining overview},
  author = {R.F. Balazik and L. McCartan and D.E. Morse and S.F. Sibley},
  year = {2001},
  url = {https://pubs.usgs.gov/publication/70024024},
  note = {Source identifier: 70024024}
}