@misc{indiciaef73b8469649f,
  title = {Geologic map and coal sections of the Lacey Gulch Quadrangle, Big Horn and Rosebud counties, Montana},
  author = {J.C. Sarnecki},
  year = {1977},
  doi = {10.3133/mf832},
  url = {https://pubs.usgs.gov/publication/mf832},
  note = {Source identifier: mf832}
}