@misc{indiciae2cbbbc5f4ef1,
  title = {Attributes for NHDplus Catchments (Version 1.1) for the Conterminous United States: Population Density, 2000},
  author = {Michael Wieczorek and Andrew E. LaMottem},
  year = {2010},
  doi = {10.3133/dds49019},
  url = {https://pubs.usgs.gov/publication/dds49019},
  note = {Source identifier: dds49019}
}