National Hydrography

About National Hydrography Products

The National Hydrography Dataset (NHD), Watershed Boundary Dataset (WBD), and NHDPlus High Resolution (NHDPlus HR) are digital geospatial datasets that map and model the surface water of the United States.

NHDPlus High Resolution (NHDPlus HR)

NHDPlus High Resolution (NHDPlus HR)

The NHDPlus High Resolution (NHDPlus HR) is a scalable geospatial hydrography framework built from the high resolution National Hydrography Dataset, nationally complete Watershed Boundary Dataset, 3D Elevation Program data.

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National Hydrography Dataset

National Hydrography Dataset

The National Hydrography Dataset (NHD), a component of The National Map, represents the water drainage network of the United States with features such as rivers, streams, canals, lakes, ponds, coastline, dams, and streamgages. The NHD is the surface water component on the US Topo map product produced by the USGS. These data, in digital vector geographic information system (GIS) format, are designed to be used in general mapping and in the analysis of surface water systems.

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Watershed Boundary Dataset

Watershed Boundary Dataset

The Watershed Boundary Dataset (WBD) defines the areal extent of surface water drainage to a point, accounting for all land and surface areas. Watershed Boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency.

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