@misc{indiciae2e415fef9ff8,
  title = {Reconnaissance geologic map of the west half of the Crescent 1 degree by 2 degrees Quadrangle, central Oregon},
  author = {N. S. MacLeod and D. R. Sherrod},
  year = {1992},
  doi = {10.3133/i2215},
  url = {https://pubs.usgs.gov/publication/i2215},
  note = {Source identifier: i2215}
}