Stream Type G4

G4 Description:

1. Entrenched gorge with step-pool sequence
2. Low width/depth ratio down a moderate slope

• Entrenchment: Well entrenched < 1.4
• Water Surface Slope/Gradient: 2-4%
• Dominant Substrate Particle Size: Predominantly gravel
• Width/Depth Ratio: < 12
• Sinuosity: > 1.2

Image courtesy of Rosgen