@misc{indiciae7d406945b450,
  title = {Geologic map and coal sections of the Verona Quadrangle, Sheridan County, Wyoming},
  author = {W. J. Mapel and B.W. Dean},
  year = {1976},
  doi = {10.3133/mf762},
  url = {https://pubs.usgs.gov/publication/mf762},
  note = {Source identifier: mf762}
}