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.

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Watershed Boundary Dataset

Watershed Boundary Dataset

The Watershed Boundary Dataset (WBD) is a seamless, national hydrologic unit dataset, with hydrologic units representing the area of the landscape that drains to a portion of the stream network.

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