Agulch is a deep V-shaped valley formed byerosion. It may contain a small stream or drycreek bed and is usually larger in size than agully.^[1] Sudden intense rainfall upstream may produceflash floods in the bed of the gulch.

In easternCanada, gulch refers to:^[2]

• a narrow deep cove (Newfoundland)
• a narrow saltwater channel (Nova Scotia)

• Arroyo – Dry watercourse with flow after rain
• Canyon – Deep chasm between cliffs, includes gorge.
• Chine – Steep-sided coastal gorge in central southern England
• Dale (landform) – Open valley
• Coulee – Type of valley or drainage zone
• Gully – Landform created by running water and/or mass movement eroding sharply into soil
• Ravine – Small valley, often due to stream erosion
• Valley – Low area between hills, often with a river running through it
• Wadi – Hydrological feature
• Draw (terrain) – Long area of downward-sloping low ground

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• Fluvial landforms
• Canyons and gorges
• Valleys
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