@misc{indiciaeb8f59af9c0cb,
  title = {GEONAMES data base of geologic names of the United States through 1988 : CO, NM},
  author = {G. W. Luttrell and M.L. Hubert and C.R. Murdock},
  year = {1990},
  doi = {10.3133/ofr90466k},
  url = {https://pubs.usgs.gov/publication/ofr90466K},
  note = {Source identifier: ofr90466K}
}