@misc{indiciae4db9280dba58,
  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 = {1958},
  doi = {10.3133/mf77},
  url = {https://pubs.usgs.gov/publication/mf77},
  note = {Source identifier: mf77}
}