Gulch
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. Sudden intense rainfall upstream may produce flash floods in the bed of the gulch.
Image:Witches Gulch with people for perspective - narrower.jpg|thumb|Witches Gulch found in the Dells of the Wisconsin River
In eastern Canada, gulch refers to: