@misc{indiciaefaa33771a1a7,
  title = {Geologic structure and altitude of the top of the Minnelusa Formation, northeastern Black Hills, South Dakota},
  author = {Kathy D. Peter and David P. Kyllonen and Kathy R. Mills},
  year = {1988},
  doi = {10.3133/wri854233},
  url = {https://pubs.usgs.gov/publication/wri854233},
  note = {Source identifier: wri854233}
}