@misc{indiciaef65d46b9205e,
  title = {Preliminary geologic and structure of the northeast part of the Cascade Springs quadrangle, Fall River County, South Dakota},
  author = {Edwin V. Post and Donald W. Lane},
  year = {1993},
  doi = {10.3133/mf208},
  url = {https://pubs.usgs.gov/publication/mf208},
  note = {Source identifier: mf208}
}