@misc{indiciae9eca49a3e131,
  title = {Geologic map of the Fort Union quadrangle, Mora County, New Mexico},
  author = {Robert Britten Johnson},
  year = {1974},
  doi = {10.3133/gq1164},
  url = {https://pubs.usgs.gov/publication/gq1164},
  note = {Source identifier: gq1164}
}