@misc{indiciaecec28ae6d40f,
  title = {Geologic map of the Crownpoint quadrangle, McKinley County, New Mexico},
  author = {J. F. Robertson},
  year = {1986},
  doi = {10.3133/gq1596},
  url = {https://pubs.usgs.gov/publication/gq1596},
  note = {Source identifier: gq1596}
}