USGS Watershed Boundary Dataset (WBD) Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) Watershed Boundary Dataset (WBD)

Metadata Updated: November 27, 2019

The Watershed Boundary Dataset (WBD) from The National Map (TNM) defines the perimeter of drainage areas formed by the terrain and other landscape characteristics. The drainage areas are nested within each other so that a large drainage area, such as the Upper Mississippi River, will be composed of multiple smaller drainage areas, such as the Wisconsin River. Each of these smaller areas can further be subdivided into smaller and smaller drainage areas. The WBD uses six different levels in this hierarchy, with the smallest averaging about 30,000 acres. The WBD is made up of polygons nested into six levels of data respectively defined by Regions, Subregions, Basins, Subbasins, Watersheds, and Subwatersheds. For additional information on the WBD, go to https://nhd.usgs.gov/wbd.html. The USGS National Hydrography Dataset (NHD) service is a companion dataset to the WBD. The NHD 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 water and transported material flow allows users to trace movement in upstream and downstream directions. In addition to this geographic information, the dataset contains metadata that supports the exchange of future updates and improvements to the data. The NHD is available nationwide in two seamless datasets, one based on 1:24,000-scale maps and referred to as high resolution NHD, and the other based on 1:100,000-scale maps and referred to as medium resolution NHD. Additional selected areas in the United States are available based on larger scales, such as 1:5,000-scale or greater, and referred to as local resolution NHD. For more information on the NHD, go to https://nhd.usgs.gov/index.html. Hydrography data from The National Map supports many applications, such as making maps, geocoding observations, flow modeling, data maintenance, and stewardship. Hydrography data is commonly combined with other data themes, such as boundaries, elevation, structures, and transportation, to produce general reference base maps. The National Map viewer allows free downloads of public domain WBD and NHD data in either Esri File or Personal Geodatabase, or Shapefile formats.

Access & Use Information

Downloads & Resources

Dates

Metadata Date September 6, 2018
Metadata Created Date September 13, 2018
Metadata Updated Date November 27, 2019
Reference Date(s) January 1, 2017 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from USGS Theme Overlay Map Services from The National Map

Graphic Preview

Browse graphic.

Additional Metadata

Resource Type Dataset
Metadata Date September 6, 2018
Metadata Created Date September 13, 2018
Metadata Updated Date November 27, 2019
Reference Date(s) January 1, 2017 (publication)
Responsible Party U.S. Geological Survey, National Geospatial Technical Operations Center (Point of Contact)
Contact Email
Access Constraints Use Constraints: None. Acknowledgement of the originating agencies would be appreciated in products derived from these data., Access Constraints: None
Bbox East Long -65
Bbox North Lat 71.5
Bbox South Lat 17.625
Bbox West Long -179.999
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Browse graphic.
Graphic Preview File https://nhd.usgs.gov/images/WatershedBoundaryDataset.jpg
Graphic Preview Type JPG
Guid
Harvest Object Id 4ffe7c32-c0bc-46ba-bcd0-7bfcf81cc5d4
Harvest Source Id a9be29df-eeae-4522-8861-723e06a43668
Harvest Source Title USGS Theme Overlay Map Services from The National Map
Licence Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a U.S. Geological Survey server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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