@misc{indiciaeddc9f8e523ea,
  title = {Cleat data for coal beds in the southern Piceance Basin, northwestern Colorado},
  author = {Marilyn A. Grout},
  year = {1991},
  doi = {10.3133/ofr91363},
  url = {https://pubs.usgs.gov/publication/ofr91363},
  note = {Source identifier: ofr91363}
}