@misc{indiciaef7834a31c2a8,
  title = {Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: NLCD 2001 Imperviousness},
  author = {Michael Wieczorek and Andrew E. LaMotte},
  year = {2010},
  doi = {10.3133/dds49012},
  url = {https://pubs.usgs.gov/publication/dds49012},
  note = {Source identifier: dds49012}
}