@misc{indiciae2b7a2fd23232,
  title = {Preliminary geologic map of the Panamint Butte quadrangle, Inyo County, California},
  author = {W. E. Hall and H.G. Stephens},
  year = {1962},
  doi = {10.3133/mf251},
  url = {https://pubs.usgs.gov/publication/mf251},
  note = {Source identifier: mf251}
}