@misc{indiciae217f6589bf4d,
  title = {Geologic map of the Thoreau quadrangle, McKinley County, New Mexico},
  author = {J. F. Robertson},
  year = {1973},
  doi = {10.3133/ofr73240},
  url = {https://pubs.usgs.gov/publication/ofr73240},
  note = {Source identifier: ofr73240}
}