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NHDPlus is an integrated suite of application-ready geospatial data products, incorporating many of the best features of the National Hydrography Dataset (NHD), the National Elevation Dataset (NED), and the National Watershed Boundary Dataset (WBD). NHDPlus, based on the medium resolution NHD (1:100,000-scale), includes the stream network and improved linear networking, feature naming, and \u201cvalue added attributes\u201d (VAA). NHDPlus also includes elevation-derived catchments. <\/font><\/div>
Since the significantly improved NHDPlusV2 is intended to supercede NHDPlusV1, new and existing NHDPlus users are strongly encouraged to use NHDPlusV2. While the NHDPlusV1 data, metadata and documentation remains available from this site, user support for the NHDPlusV1 will be increasingly limited.<\/span>
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