@misc{indiciae8125c4990dc1,
  title = {National Cartographic Information Center (NCIC)},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1976},
  doi = {10.3133/70039208},
  url = {https://pubs.usgs.gov/publication/70039208},
  note = {Source identifier: 70039208}
}