Service Description: The NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat...
Service ItemId: a2df792e3e45441080331b3c7e92b542
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
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Description: 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.
Copyright Text: See dataset specific metadata. Clipped to the Big Thompson River watershed by Tim Riley, intern at The Geospatial Centroid, Colorado State University, 4/02/2014.
Spatial Reference: 26913 (26913)
Initial Extent:
XMin: 421628.102123315
YMin: 4428740.68503011
XMax: 531019.790276685
YMax: 4522233.20856989
Spatial Reference: 26913 (26913)
Full Extent:
XMin: 432344.905
YMin: 4453476.7757
XMax: 520302.9874
YMax: 4497497.1179
Spatial Reference: 26913 (26913)
Units: esriMeters
Child Resources:
Info
SharedTemplates
Supported Operations:
Query
ConvertFormat
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