Service Description: The National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD) are used to portray surface water on The National Map. The NHD represents the drainage network with features such as rivers, streams, canals, lakes, ponds, coastline, dams, and streamgages. The WBD represents drainage basins as enclosed areas in eight different size categories. Both datasets represent the real world at a nominal scale of 1:24,000-scale, which means that one inch of The National Map data equals 2,000 feet on the ground. To maintain mapping clarity not all water features are represented and those that are use a moderate level of detail. These data are a subset of a larger dataset published by the organization listed in the credits.Great Smoky Mountains National Park makes these data available in this form such that users can: effectively manipulate data for park mapping activites that do not require the aquistion of a large, nation-wide data set; alter symobology and rendering parameters natively; restrict analysis of geospatial data to an extent that coincides with the park footprint.
Service ItemId: 1944e22db77b4ac7b2b55c0661f87955
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: True
Supports Shared Templates: False
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Layers:
Description: The National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD) are used to portray surface water on The National Map. The NHD represents the drainage network with features such as rivers, streams, canals, lakes, ponds, coastline, dams, and streamgages. The WBD represents drainage basins as enclosed areas in eight different size categories. Both datasets represent the real world at a nominal scale of 1:24,000-scale, which means that one inch of The National Map data equals 2,000 feet on the ground. To maintain mapping clarity not all water features are represented and those that are use a moderate level of detail. These data are a subset of a larger dataset published by the organization listed in the credits.Great Smoky Mountains National Park makes these data available in this form such that users can: effectively manipulate data for park mapping activites that do not require the aquistion of a large, nation-wide data set; alter symobology and rendering parameters natively; restrict analysis of geospatial data to an extent that coincides with the park footprint.
Copyright Text: United States Geological Survey
Spatial Reference: 4269 (4269)
Initial Extent:
XMin: -84.272139062681
YMin: 35.1372835904746
XMax: -82.8170419103189
YMax: 36.1516303255256
Spatial Reference: 4269 (4269)
Full Extent:
XMin: -84.2053909109999
YMin: 35.3815805360001
XMax: -82.8837900619999
YMax: 35.9073333800001
Spatial Reference: 4269 (4269)
Units: esriDecimalDegrees
Child Resources:
Replicas
Info
Supported Operations:
Query
ConvertFormat
Get Estimates
Create Replica
Synchronize Replica
Unregister Replica