@misc{indiciae0d098d0cbbb5,
  title = {USGS's National Mapping Program},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1996},
  doi = {10.3133/fs09396},
  url = {https://pubs.usgs.gov/publication/fs09396},
  note = {Source identifier: fs09396}
}