@misc{indiciae486032c21805,
  title = {Geologic map of the Laguna Ortiz quadrangle, San Miguel County, New Mexico},
  author = {Robert Britten Johnson},
  year = {1971},
  doi = {10.3133/gq956},
  url = {https://pubs.usgs.gov/publication/gq956},
  note = {Source identifier: gq956}
}