@misc{indiciaedd1e3753c2c3,
  title = {Shaded Relief},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1999},
  doi = {10.3133/32554},
  url = {https://pubs.usgs.gov/publication/32554},
  note = {Source identifier: 32554}
}