@misc{indiciae984c27ba2edf,
  title = {Geologic map of the Redrock NW Quadrangle, Grant County, New Mexico},
  author = {D. C. Hedlund},
  year = {1980},
  doi = {10.3133/mf1263},
  url = {https://pubs.usgs.gov/publication/mf1263},
  note = {Source identifier: mf1263}
}