@misc{indiciae06c4f3d984ed,
  title = {Coal resource occurrence and coal development potential maps of the Mud Springs Ranch quadrangle, Sweetwater County, Wyoming},
  author = {Joseph D. Sanchez},
  year = {1978},
  doi = {10.3133/ofr7831},
  url = {https://pubs.usgs.gov/publication/ofr7831},
  note = {Source identifier: ofr7831}
}