Parent Layer: Other Boundaries

Name: Hydrologic Units

Display Field: HU_12_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This geospatial dataset represents the 6th level (12-digit) hydrologic unit boundaries from the Watershed Boundary Dataset (WBD) layer for Oregon. Hydrologic units within the WBD_OR_HUC_12 represent drainage areas delineated to the 6th level drainage systems. Their boundaries are defined by hydrographic and topographic criteria that delineate an area of land upstream from a specific point on a river, stream, or similar surface waters. Hydrologic units within the WBD_OR_HUC_12 can accept surface water directly from upstream drainage areas, and indirectly from associated surface areas such as remnant, non-contributing, and diversions to form a drainage area with single or multiple outlet points. Boundaries within the WBD_OR_HUC_12 were delineated by Pacific Northwest (PNW) Hydrography Framework Partners to meet state requirements and to contribute to the national WBD repository. To meet these goals, the WBD must adhere to the "Federal Standards for Delineation of Hydrologic Unit Boundaries", dated October, 2004. These HUC_12 boundaries were made from the Oregon dataset that has been given national certification by Natural Resources Conservation Service (NRCS) Prior to submission the dataset was subjected to an iterative review and edit process to ensure that the hydrologic boundaries fully satisfy the federal standards. This work was completed under a Memorandum of Understanding between the Pacific Northwest Hydrography Framework Partnership and the US Geological Survey (USGS). The current dataset includes all 6th level boundaries that are in all 4th level (8-digit) subbasins that fall within or intersect the Oregon state boundary.

Definition Expression: N/A

Copyright Text: Pacific Northwest Hydrography Framework, U.S. Geological Survey (USGS), National Resources Conservation Service (NRCS).

Default Visibility: false

MaxRecordCount: 1000

Supported Query Formats: JSON, AMF, geoJSON

Min Scale: 3000000

Max Scale: 100

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: true

Can Modify Layer: false

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -124.70384726299994
YMin: 40.76009717800008
XMax: -115.95848627899994
YMax: 46.51444622100007
Spatial Reference: 4326  (4326)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [0, 0, 0, 0]
Outline:
Style: esriSLSSolid
Color: [0, 77, 168, 255]
Width: 1
Label:
Description:
Transparency: 0
Labeling Info:
Label Placement: esriServerPolygonPlacementAlwaysHorizontal
Label Expression: [HU_12_NAME]
Use Coded Values: true
Symbol:
Color: [0, 77, 168, 255]
Background Color: N/A
Outline Color: N/A
Vertical Alignment: bottom
Horizontal Alignment: center
Right to Left: false
Angle: 0
XOffset: 0
YOffset: 0
Size: 8
Font Family: Arial
Font Style: italic
Font Weight: normal
Font Decoration: none

Min. Scale: 100000.0
Max. Scale: 0.0

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID , alias: OBJECTID )
• HUC_12 ( type: esriFieldTypeString , alias: HUC_12 , length: 12 )
• HU_12_NAME ( type: esriFieldTypeString , alias: HU_12_NAME , length: 80 )
• HU_12_TYPE ( type: esriFieldTypeString , alias: HU_12_TYPE , length: 1 )
• ACRES ( type: esriFieldTypeDouble , alias: ACRES )
• SHAPE ( type: esriFieldTypeGeometry , alias: SHAPE )
• SHAPE_Length ( type: esriFieldTypeDouble , alias: SHAPE_Length )
• SHAPE_Area ( type: esriFieldTypeDouble , alias: SHAPE_Area )

Supported Operations:   Query   Generate Renderer   Return Updates

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