@misc{indiciae6955241a0a14,
  title = {Mineral resources of Wilderness Study Areas: north-central Colorado},
  author = {Sandra J. Soulliere and Mark A. Arnold and Steven E. Kluender and Richard E. Van Loenen},
  year = {1985},
  doi = {10.3133/b1717},
  url = {https://pubs.usgs.gov/publication/b1717},
  note = {Source identifier: b1717}
}