@misc{indiciaea855a93f82b8,
  title = {Geologic map of the Twin Buttes Quadrangle, McKinley County, New Mexico},
  author = {M.L. Millgate},
  year = {1991},
  doi = {10.3133/i2278},
  url = {https://pubs.usgs.gov/publication/i2278},
  note = {Source identifier: i2278}
}