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The USGS National Hydrography Dataset (NHD) Downloadable Data Collection from The National Map (TNM) is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of surface water (lakes, ponds, and reservoirs), paths through which water flows (canals, ditches, streams, and rivers), and related entities such as point features (springs, wells, stream gages, and dams). The information encoded about these features includes classification and other characteristics, delineation, geographic name, position and related measures, a "reach code" through which other information can be related to the NHD, and the direction of water flow. The network of reach codes delineating...
Tags: Administrative watershed units,
Area of Complex Channels,
Area to be submerged,
Artificial path,
Basin, All tags...
Bay/Inlet,
Boundaries,
Boundary,
Bridge,
Canal/Ditch,
Coastline,
Connector,
Dam/Weir,
Dams,
Drainage areas for surface water,
Drainage systems and characteristics,
Estuary,
Flow direction network,
Flume,
ForeShore,
Gaging Station,
Gate,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU6,
HU8,
HUC,
Hazard Zone,
Hydrographic,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Lakes,
Levee,
Line,
Lock Chamber,
Marsh,
NGDA,
National Geospatial Data Asset,
Nonearthen Shore,
Orthoimage,
Playa,
Point,
PointEvent,
Pond,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rivers,
Rock,
Sea/Ocean,
Sink/Rise,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
Stream,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Surface water systems,
Swamp,
Topographic,
Tunnel,
US,
Underground Conduit,
United States,
WBD,
Wall,
Wash,
Water Inland Theme,
Water Intake Outflow,
Waterfall,
Watershed,
Watershed Boundaries,
Watershed Boundary Dataset,
Well,
inlandWaters,
series, Fewer tags
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