Name: Watershed Boundary

Display Field: Id

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: All HydroBASINS layers were derived from World Wildlife Fund’s HydroSHEDS data based on a grid resolution of 15 arc-seconds (approximately 500 m at the equator). Watersheds were delineated in a consistent manner at different scales, and a hierarchical sub-basin breakdown was created following the topological concept of the Pfafstetter coding system. The resulting polygon layers are termed HydroBASINS and represent a subset of the HydroSHEDS database. This shapefile contains (sub-)basin polygons for Africa at Pfafstetter level 8.

Copyright Text: The HydroBASINS product has been developed on behalf of World Wildlife Fund US (WWF), with support and in collaboration with the EU BioFresh project, Berlin, Germany; the International Union for Conservation of Nature (IUCN), Cambridge, UK; and McGill University, Montreal, Canada. We kindly ask users to cite HydroBASINS in any published material produced using the data. If possible, online links to the HydroSHEDS website (http://www.hydrosheds.org) should be provided. Citations and acknowledgements of the HydroBASINS data should be made as follows: Lehner, B., Grill G. (2013): Global river hydrography and network routing: baseline data and new approaches to study the world’s large river systems. Hydrological Processes, 27(15): 2171–2186. Data is available at www.hydrosheds.org.

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 36.6665104928807
YMin: -3.4244948016965
XMax: 38.0944231697739
YMax: -1.68252215727366
Spatial Reference: 4210 (4210)

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Id (type: esriFieldTypeInteger, alias: Id, SQL Type: sqlTypeOther, nullable: true, editable: true)
• km2 (type: esriFieldTypeDouble, alias: km2, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: Watershed Boundary
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/14/2025 5:51:54 PM

Schema Last Edit Date: 8/14/2025 5:51:54 PM

Data Last Edit Date: 8/14/2025 5:51:54 PM

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