@misc{indiciaecd4727074f61,
  title = {Geology of the Thompson Creek coal mining area, Pitkin County, Colorado, as related to subsurface hydraulic mining potential},
  author = {Bion H. Kent and Harold H. Arndt},
  year = {1980},
  doi = {10.3133/ofr80507},
  url = {https://pubs.usgs.gov/publication/ofr80507},
  note = {Source identifier: ofr80507}
}