A gulch is a deep V-shaped valley formed by erosion. It may contain a small stream or dry creek bed and is usually larger in size than a gully.^[1] Sudden intense rainfall upstream may produce flash floods in the bed of the gulch.

In eastern Canada, gulch refers to:^[2]

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

• Arroyo (creek) – Dry watercourse with flow after rainPages displaying short descriptions of redirect targets
• Canyon – Deep chasm between cliffs, includes gorge.
• 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 – River valley, especially a dry riverbed that contains water only during times of heavy rain
• Draw (terrain) – Terrain feature formed by two parallel ridges or spurs with low ground in betweenPages displaying short descriptions of redirect targets