@misc{indiciae7fa1a27ac2d1,
  title = {Preliminary geologic map and coal sections of the Wyarno Quadrangle, Sheridan County, Wyoming},
  author = {W.C. Culbertson},
  year = {1975},
  doi = {10.3133/mf723},
  url = {https://pubs.usgs.gov/publication/mf723},
  note = {Source identifier: mf723}
}