Stream Type A6a+
A6a+ Description:
- Entrenched and confined steep, narrow, cascading Streams
- High energy/debris transport associated with Depositional soils
- Little bed load sediment due to wash and high contribution to annual yield
- Entrenchment: Entrenched, Ratio < 1.4
- Water Surface Slope/Gradient: >10%
- Dominant Substrate Particle Size: Predominantly silt/clay
- Width/Depth Ratio: < 12
- Sinuosity: < 1.2
Image courtesy of Rosgen
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