@misc{indiciaec998f0588fce,
  title = {Revised Geologic Map of the Fort Garland Quadrangle, Costilla County, Colorado},
  author = {Alan R. Wallace and Michael N. Machette},
  year = {2008},
  doi = {10.3133/sim2965},
  url = {https://pubs.usgs.gov/publication/sim2965},
  note = {Source identifier: sim2965}
}