ArcGIS REST Services Directory
JSON

Layer: WBDHU4 (ID:26)

View In:   Map Viewer

Name: WBDHU4

Display Field: NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <span style="font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;">Each drainage area is considered a Hydrologic Unit (HU) and is given a Hydrologic Unit Code (HUC) which serves as the unique identifier for the area. Hydrologic Units are delineated to nest in a multi-level, hierarchical drainage system with corresponding HUCs, so that as you move from small scale to large scale the HUC digits increase in increments of two. For example, the very largest HUCs have 2 digits, and thus are referred to as HUC 2s, and the very smallest HUCs have 12 digits, and thus are referred to as HUC 12s.</span><div style="font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;"><br /></div><div style="font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;"><div style="font-family:&quot;Lucida Grande&quot;, &quot;Lucida Sans Unicode&quot;, Arial, Helvetica, sans-serif; margin:0px; padding:0px; color:rgb(77, 77, 77); font-size:14px;"><img alt="WBD HUCs" src="https://downloads.esri.com/blogs/hydro/AGOL_Content/WBD.jpg" style="max-width:100%; height:auto;" /></div></div><div style="font-family:&quot;Lucida Grande&quot;, &quot;Lucida Sans Unicode&quot;, Arial, Helvetica, sans-serif; margin:0px; padding:0px; color:rgb(77, 77, 77); font-size:14px;"><br /></div><span style="font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;">HUC 2s, 6s, 8s, 10s, &amp; 12s, define the drainage Regions, Subregions, Basins, Subbasins, Watersheds and Subwatersheds, respectively, across the United States. Their boundaries are defined by hydrologic and topographic criteria that delineate an area of land upstream from a specific point on a river and are determined solely upon science based hydrologic principles, not favoring any administrative boundaries, special projects, or a particular program or agency. The Watershed Boundary Dataset is delineated and georeferenced to the USGS 1:24,000 scale topographic basemap.</span><div style="font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;"><br /><div style="font-family:inherit;"><font size="4" style="font-family:inherit;">Dataset Summary</font></div><div style="font-family:inherit;"><br /></div><div style="font-family:inherit;"><b>Phenomenon Mapped</b>: Watersheds in the United States, as delineated by the Watershed Boundary Dataset (WBD).</div><div style="font-family:inherit;"><b>Coordinate System</b>: NAD83<br /></div><div style="font-family:inherit;"><b>Extent</b>: Contiguous United States, Alaska, Hawaii, Puerto Rico, Guam, US Virgin Islands, Northern Marianas Islands and American Samoa.</div><div style="font-family:inherit;"><b>Visible Scale</b>: Visible at all scales, however USGS recommends this dataset should not be used for scales of 1:24,000 or larger.<br /></div><div style="font-family:inherit;"><b>Source</b>: United States Geological Survey</div><div style="font-family:inherit;"><b>Publication Date</b>: July 27, 2023</div></div>

Copyright Text: The distributor shall not be held liable for improper or incorrect use of this data, based on the description of appropriate/inappropriate uses described in this metadata document. It is strongly recommended that this data is directly acquired from the distributor and not indirectly through other sources which may have changed the data in some way. These data should not be used at scales greater than 1:24,000 for the purpose of identifying hydrographic watershed boundary feature locations in the United States. The Watershed Boundary Dataset is public information and may be interpreted by all organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application of the data. Photographic or digital enlargement of these maps to scales greater than that at which they were originally delineated can result in misrepresentation of the data. If enlarged, the maps will not include the fine detail that would be appropriate for mapping at the small scale. Digital data files are periodically updated and users are responsible for obtaining the latest version of the data from the source distributor. Acknowledgment of the origination agencies would be appreciated in products derived from these data. The United States Fish and Wildlife Service (Service) shall not be held liable for improper or incorrect use of the data described and/or contained herein. While the Service makes every reasonable effort to ensure the accuracy and completeness of data provided for distribution, it may not have the necessary accuracy or completeness required for every possible intended use. The Service recommends that data users consult the associated metadata record to understand the quality and possible limitations of the data. The Service creates metadata records in accordance with the standards endorsed by the Federal Geographic Data Committee. As a result of the above considerations, the Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of the data. It is the responsibility of the data user to use the data in a manner consistent with the limitations of geospatial data in general and these data in particular. Although these data have been processed successfully on a computer system at the Service, no warranty, expressed or implied, is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This applies to the use of the data both alone and in aggregate with other data and information.

Min. Scale: 0

Max. Scale: 1000000

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Global ID Field: GLOBALID

Type ID Field:

Fields:
Templates:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 4/11/2025 1:53:15 PM

Schema Last Edit Date: 4/11/2025 1:53:15 PM

Data Last Edit Date: 4/11/2025 1:51:35 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Update Features   Apply Edits   Calculate   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat