@misc{indiciaedf3cdcf1c9a8,
  title = {National Atlas of the United States Maps},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {2001},
  doi = {10.3133/fs08601},
  url = {https://pubs.usgs.gov/publication/fs08601},
  note = {Source identifier: fs08601}
}