@misc{indiciaec2c81f049005,
  title = {Preliminary geologic map of the northeast part of the Dewey quadrangle, Custer County, South Dakota, and Weston County, Wyoming},
  author = {D.A. Brobst},
  year = {1957},
  doi = {10.3133/tem1047},
  url = {https://pubs.usgs.gov/publication/tem1047},
  note = {Source identifier: tem1047}
}