@misc{indiciae6b36a2e4b11e,
  title = {Exploration of the Buckhorn Mica Pegmatite mine, Larimer County, Colorado},
  author = {W. R. Thurston},
  year = {1950},
  doi = {10.3133/ofr5022},
  url = {https://pubs.usgs.gov/publication/ofr5022},
  note = {Source identifier: ofr5022}
}