@misc{indiciae928761398bf7,
  title = {Geologic map of the Duncan Peak and southern part of the Cisco Grove 7 1/2' quadrangles, Placer and Nevada Counties, California},
  author = {David S. Harwood and G. Reid Fisher and Barbara J. Waugh},
  year = {1995},
  doi = {10.3133/i2341},
  url = {https://pubs.usgs.gov/publication/i2341},
  note = {Source identifier: i2341}
}