@misc{indiciae8ae71f7125cd,
  title = {Thickness of Upper Cretaceous rocks from the base of the Fox Hills Sandstone to the top of the Lower Cretaceous rocks, Powder River basin, Wyoming and Montana},
  author = {J. E. Fox and Debra K. Higley},
  year = {1987},
  doi = {10.3133/ofr87340q},
  url = {https://pubs.usgs.gov/publication/ofr87340Q},
  note = {Source identifier: ofr87340Q}
}