@misc{indiciae790c8cd6f053,
  title = {Land use and land cover and associated maps for Great Falls, Montana},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1977},
  doi = {10.3133/ofr77806},
  url = {https://pubs.usgs.gov/publication/ofr77806},
  note = {Source identifier: ofr77806}
}