What Are U Shaped Valleys? A U-shaped valley is an geological formation with steep, high sides and a rounded or flat valley bottom. These valleys are formed by glaciation. They are often filled with lakes rivers, sandtraps, sandtraps on golf courses kettle lakes (water hazards), or other natural features. Glacial https://couches45274.blogs100.com/30330158/8-tips-for-boosting-your-sectional-u-shape-game