@misc{indiciaef77d4a342603,
  title = {Reconnaissance geologic map of the Oregon part of the Grangeville Quadrangle, Baker, Union, Umatilla, and Wallowa counties, Oregon},
  author = {G. W. Walker},
  year = {1979},
  doi = {10.3133/i1116},
  url = {https://pubs.usgs.gov/publication/i1116},
  note = {Source identifier: i1116}
}