@misc{indiciaecdee283e62ec,
  title = {Description of measured sections of the Pennsylvanian Quadrant Sandstone, Beaverhead, Madison, and Park counties, southwestern Montana},
  author = {H.I. Saperstone},
  year = {1986},
  doi = {10.3133/ofr86182},
  url = {https://pubs.usgs.gov/publication/ofr86182},
  note = {Source identifier: ofr86182}
}