@misc{indiciaeb090c7535778,
  title = {Leasable mineral and waterpower land classification map of the Butte quadrangle, Montana: Lands withdrawn, classified, and prospectively valuable for leasable minerals; occurrences of other selected minerals; and lands withdrawn or classified for waterpower and reservoir sites},
  author = {Andrew F. Bateman and E. G. Allen and G. S. Yamamoto},
  year = {1980},
  doi = {10.3133/ofr80479},
  url = {https://pubs.usgs.gov/publication/ofr80479},
  note = {Source identifier: ofr80479}
}