@misc{indiciae5ffab6ca9f70,
  title = {Leasable mineral and waterpower land classification map of the Shelby 1° x 2° quadrangle, Montana},
  author = {A. F. Bateman and G. A. Lutz},
  year = {1977},
  doi = {10.3133/i1018},
  url = {https://pubs.usgs.gov/publication/i1018},
  note = {Source identifier: i1018}
}