@misc{indiciaeb3714b0c99fe,
  title = {Leasable mineral and waterpower land classification map of the Leadville 1° x 2° quadrangle, Colorado},
  year = {1979},
  doi = {10.3133/i1108},
  url = {https://pubs.usgs.gov/publication/i1108},
  note = {Source identifier: i1108}
}