@misc{indiciae0e5bc0680f07,
  title = {Geologic map of the Trinchera Ranch quadrangle, Costilla County, Colorado},
  author = {Alan R. Wallace},
  year = {1996},
  doi = {10.3133/mf2312c},
  url = {https://pubs.usgs.gov/publication/mf2312C},
  note = {Source identifier: mf2312C}
}