@misc{indiciae25aa77dc5618,
  title = {Leasable mineral and waterpower land classification map of the Ashton quadrangle, Idaho, Montana, Wyoming: Lands withdrawn, classified, and prospectively valuable for leasable minerals; occurrences of other selected minerals; and lands withdrawn or classified for water power and reservoir sites},
  author = {Andrew F. Bateman and E. G. Allen and J. B. Dugwyler and J. L. Colbert},
  year = {1980},
  doi = {10.3133/ofr80484},
  url = {https://pubs.usgs.gov/publication/ofr80484},
  note = {Source identifier: ofr80484}
}