@misc{indiciae63af53b855e7,
  title = {Summary report on the stratigraphy and structure of the northern and western flanks of the Black Hills uplift: September, 1956},
  author = {Charles Sherwood Robinson and William Jameson Mapel and Maximilian Hilmar Bergendahl},
  year = {1956},
  doi = {10.3133/tem900},
  url = {https://pubs.usgs.gov/publication/tem900},
  note = {Source identifier: tem900}
}