TY - RPRT TI - Attributes for NHDPlus Catchments (Version 1.1)for the Conterminous United States: Contact Time, 2002 AU - Michael Wieczorek AU - Andrew E. LaMotte PY - 2010 DO - 10.3133/dds49007 UR - https://pubs.usgs.gov/publication/dds49007 ID - dds49007 ER -