National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: July 16, 2025 | Last Modified: 20230913

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. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee. For additional information on NHD, go to https://www.usgs.gov/national-hydrography.

Find Related Datasets

Click any tag below to search for similar datasets

Administrative watershed units Area of Complex Channels Area to be submerged Basin Bay/Inlet Boundaries Boundary Bridge Canal/Ditch Coastline Connector Dam/Weir Drainage area for surface water Estuary FileGDB Flow direction network Flume ForeShore Gaging Station Gate GeoPackage HU10 HU12 HU14 HU16 HU2 HU4 HU6 HU8 HUC Hazard Zone Hydrographic Hydrography Hydrologic Unit Hydrologic Unit Code Hydrologic Units Ice mass Inundation Area Lake Levee Line Lock Chamber Marsh NGDA NGDAID159 National Geospatial Data Asset Nonearthen Shore Playa Point PointEvent Pond Rapids Reach Reach code Reef Region Reservoir River Rock Sea/Ocean Sink/Rise Sounding Datum Line Special Use Zone Special Use Zone Limit Spillway Stream Stream/River Submerged Stream Swamp Topographic Tunnel US USGS:ecd2ad5e-faa2-4291-bcdb-441b7113ea41 Underground Conduit United States WBD Wall Wash Water Inland Theme Water Intake Outflow Waterfall Watershed Watershed Boundaries Watershed Boundary Dataset Well artificial path boundaries dams drainage systems and characteristics inlandWaters surface water surface water systems

Complete Metadata

@id	http://datainventory.doi.gov/id/dataset/e94bc8e121e87897fe3fd9511ebb1046
bureauCode	[ "010:12" ]
identifier	USGS:ecd2ad5e-faa2-4291-bcdb-441b7113ea41
spatial	-179.0,10.0,-64.0,72.0
theme	[ "geospatial" ]

2 resources available

Location