@misc{indiciaef53a493a5072,
  title = {Reconnaissance geologic map of the Dillon 15-minute Quadrangle, Summit, Eagle, and Grand counties, Colorado},
  author = {Ogden Tweto},
  year = {1973},
  doi = {10.3133/ofr73285},
  url = {https://pubs.usgs.gov/publication/ofr73285},
  note = {Source identifier: ofr73285}
}