@misc{indiciaef4859ecf457a,
  title = {Paleogeographic maps of the Telegraph Creek, Eagle, Claggett, Judith River, Bearpaw, and Fox Hills times of late Cretaceous Epoch in the western interior region},
  author = {James R. Gill and William Aubrey Cobban},
  year = {1969},
  doi = {10.3133/ofr69106},
  url = {https://pubs.usgs.gov/publication/ofr69106},
  note = {Source identifier: ofr69106}
}