@misc{indiciaeaa87e40f52dc,
  title = {Geologic map of the Two Ocean Pass quadrangle, Yellowstone National Park and vicinity, Wyoming},
  author = {Harry Wynn Smedes and John W. M’Gonigle and Harold J. Prostka},
  year = {1989},
  doi = {10.3133/gq1667},
  url = {https://pubs.usgs.gov/publication/gq1667},
  note = {Source identifier: gq1667}
}