Layers:

Layer: Designated Sediment Source Area (1)

Name: Designated Sediment Source Area

Display Field: Id

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The surface area draining to each debris flow traversal corridor is delineated from the confluence of the corridor with a fish-bearing stream. The delineated area defines a subbasin within the much larger 4th-field HUC analysis basin. Within each subbasis, the initiation sites for debris flows that can carry material to the fish-bearing stream at the subbasin mouth are mapped. These are the sediment source areas for that subbasin. Within each subbasin, the highest 33% of the mean annual deliveered sediment (source areas) is defined as the "Sediment Source Areas".</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>

Copyright Text: Private Forest Accord Steep Slope Prescriptions; please refer to Appendix B: Delineating Landslide and Debris Flow Susceptibility in the Private Forest Accord (2022) Report.

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Extent:
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YMin: 102961.93635170162
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Spatial Reference: 2992  (2992)



Drawing Info:
Renderer:
Unique Value Renderer:
Field 1: TriggerSource
Field 2: N/A
Field 3: N/A
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UniqueValueInfos:
• Value: 0
  Label: Highest 33% Designated Sediment Source Area
  Description: N/A
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• Value: 1
  Label: Highest 20% Landslide Susceptibility with Trigger Sources Contained within the Area
  Description: N/A
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Type ID Field: null

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