@misc{indiciaefa17855e01d8,
  title = {Geologic map of the Frisco quadrangle, Summit County, Colorado},
  author = {Karl S. Kellogg and Paul J. Bartos and Cindy L. Williams},
  year = {2002},
  doi = {10.3133/mf2340},
  url = {https://pubs.usgs.gov/publication/mf2340},
  note = {Source identifier: mf2340}
}