@misc{indiciaeab3cb445f592,
  title = {Interpretation of aerial radiometric data for the Lake City Caldera and vicinity, Hinsdale, San Juan, and Ouray counties, Colorado},
  author = {J. A. Pitkin and J. S. Duval},
  year = {1982},
  doi = {10.3133/mf1449},
  url = {https://pubs.usgs.gov/publication/mf1449},
  note = {Source identifier: mf1449}
}