@misc{indiciae384faaa1223f,
  title = {Geologic map showing part of the May Creek schist and related rocks, Jackson County, Oregon},
  author = {M. M. Donato},
  year = {1991},
  doi = {10.3133/mf2171},
  url = {https://pubs.usgs.gov/publication/mf2171},
  note = {Source identifier: mf2171}
}