@misc{indiciae52e1d9796768,
  title = {Geologic map of the Three Sisters Wilderness, Deschutes, Lane, and Linn counties, Oregon},
  author = {E. M. Taylor and N. S. MacLeod and D. R. Sherrod and G. W. Walker},
  year = {1987},
  doi = {10.3133/mf1952},
  url = {https://pubs.usgs.gov/publication/mf1952},
  note = {Source identifier: mf1952}
}