@misc{indiciaeccdee63a3bc9,
  title = {Geologic map of the Vermejo Park Quadrangle, Colfax County, New Mexico, and Las Animas County, Colorado},
  author = {Charles L. Pillmore},
  year = {2003},
  doi = {10.3133/ofr2003438},
  url = {https://pubs.usgs.gov/publication/ofr2003438},
  note = {Source identifier: ofr2003438}
}