@misc{indiciae53111fcc2260,
  title = {Photogeologic and reconnaissance geologic map of the Black Coulee Quadrangle, Rosebud County, Montana},
  author = {R. B. Colton and J.L. Klockenbrink and M. A. Grout and E.L. Heffern and P.R. Bierbach},
  year = {1987},
  doi = {10.3133/mf2011},
  url = {https://pubs.usgs.gov/publication/mf2011},
  note = {Source identifier: mf2011}
}