@misc{indiciae5cc5495a8931,
  title = {The Robinson and Weatherly uraniferous pyrobitumen deposits near Placerville, San Miguel County, Colorado},
  author = {V.R. Wilmarth and R.C. Vickers},
  year = {1953},
  doi = {10.3133/ofr53273},
  url = {https://pubs.usgs.gov/publication/ofr53273},
  note = {Source identifier: ofr53273}
}