@misc{indiciae9512f63d2607,
  title = {Geologic map of the Groom Mine SW quadrangle, Nye and Lincoln Counties, Nevada},
  author = {Roger B. Colton and Donald C. Noble},
  year = {1967},
  doi = {10.3133/gq719},
  url = {https://pubs.usgs.gov/publication/gq719},
  note = {Source identifier: gq719}
}