@misc{indiciae026772bde8dc,
  title = {Geologic map of the Pine Grove Hills Quadrangle, Lyon County, Nevada},
  author = {John H. Stewart and M.W. Reynolds},
  year = {1987},
  doi = {10.3133/ofr87658},
  url = {https://pubs.usgs.gov/publication/ofr87658},
  note = {Source identifier: ofr87658}
}