@misc{indiciae41768d2b6a83,
  title = {Preliminary tectonic map of western South Dakota, showing distribution of uranium deposits},
  author = {F. W. Osterwald and B.G. Dean},
  year = {1957},
  doi = {10.3133/mf128},
  url = {https://pubs.usgs.gov/publication/mf128},
  note = {Source identifier: mf128}
}