@misc{indiciaec88f01d80b23,
  title = {Geologic map of the Monument quadrangle, Grant County, Oregon},
  author = {Ray E. Wilcox and Richard V. Fisher},
  year = {1966},
  doi = {10.3133/gq541},
  url = {https://pubs.usgs.gov/publication/gq541},
  note = {Source identifier: gq541}
}