The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NH

DataONE2016-10-29 更新70

National Hydrography Dataset (NHD)

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 50

DataCite Commons2023-09-28 更新00

National Hydrography Dataset (NHD) - Minnesota

The NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addre

Minnesota Geospatial Commons2026-05-14 更新00