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NHDPlusV2 Catchments in GCPO LCC NHDPlusV2 is described in ftp://ec2-54-227-241-43.compute-1.amazonaws.com/NHDplus/NHDPlusV21/Documentation/Metadata/NHDPlusV2_metadata.htm as “an integrated suite of application-ready geospatial data sets that incorporate many of the best features of the National Hydrography Datasets (NHD) and the National Elevation Datasets (NED)” (USEPA and USGS 2012). NHDPlusV2 includes derivation of “elevation-derived catchments (drainage areas) produced using a drainage enforcement technique first broadly applied in New England, and thus dubbed "The New-England Method". This technique involves "burning-in" the 1:100,000-scale NHD and building "walls" using the national Watershed Boundary Dataset (WBD)” (USEPA and USGS 2012).... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: GCPO LCC, Gulf Coastal Plains and Ozarks Landscape Conservation Cooperative, NED, NHD, National Elevation Datasets, All tags... National Hydrology Datasets, Fewer tags