@misc{indiciae009202623669,
  title = {Mineral resources of the Lower John Day and Thirtymile Wilderness Study Areas, Sherman and Gilliam Counties, Oregon},
  author = {Jay A. Ach and S.A. Minor and J. G. Frisken and R.J. Blakely and H. W. Campbell and E.L. McHugh},
  year = {1988},
  doi = {10.3133/b1743a},
  url = {https://pubs.usgs.gov/publication/b1743A},
  note = {Source identifier: b1743A}
}