@misc{indiciae40f6d5610e13,
  title = {Percent-slope classes to characterize watersheds in North Carolina},
  author = {Silvia Terziotti and Jo Leslie Eimers},
  year = {2001},
  doi = {10.3133/ofr01496},
  url = {https://pubs.usgs.gov/publication/ofr01496},
  note = {Source identifier: ofr01496}
}