@misc{indiciae2b0348621551,
  title = {Coal resources in the Mud Springs Ranch Quadrangle, Sweetwater County, Wyoming},
  author = {Henry W. Roehler},
  year = {1977},
  doi = {10.3133/ofr7777},
  url = {https://pubs.usgs.gov/publication/ofr7777},
  note = {Source identifier: ofr7777}
}