@misc{indiciaebcaf8a0fbf15,
  title = {Distribution of the basal clastic unit of the Oligocene White River Formation in the Torrington and New Castle 1 degree x 2 degrees quadrangles, Wyoming, Nebraska, and South Dakota},
  author = {K. A. Dickinson and R. A. Wise},
  year = {1989},
  doi = {10.3133/ofr89552},
  url = {https://pubs.usgs.gov/publication/ofr89552},
  note = {Source identifier: ofr89552}
}