What Are U Shaped Valleys? A U-shaped valley is an geological formation with steep, high sides and a flat or rounded valley bottom. These valleys are formed by glaciation. They usually contain lakes or rivers, sandtraps along a golf course, kettle lakes (water hazards), or other natural features. Glacial erosion https://sofasandcouches32311.mdkblog.com/35539986/a-step-by-step-guide-for-choosing-the-right-sectional-u-shape