@misc{indiciae97cb4bb0fdb8,
  title = {Tectonic map of western South Dakota, showing the distribution of uranium deposits},
  author = {Frank W. Osterwald and Basil Gray Dean},
  year = {1956},
  doi = {10.3133/tem948},
  url = {https://pubs.usgs.gov/publication/tem948},
  note = {Source identifier: tem948}
}