@misc{indiciae68eac4974e82,
  title = {Geologic and structure map of the Minnekahta NE quadrangle, Fall River and Custer Counties, South Dakota},
  author = {D.E. Wolcott and C.G. Bowles and D.A. Brobst and E.V. Post},
  year = {1962},
  doi = {10.3133/mf242},
  url = {https://pubs.usgs.gov/publication/mf242},
  note = {Source identifier: mf242}
}