What Are U Shaped Valleys? A U-shaped Valley is an ancient geological formation with steep, high sides and an elongated or flat valley bottom. These valleys are formed by glaciation. They usually contain lakes rivers, sandtraps, sandtraps on golf courses kettle lakes (water hazards) or other natural features. Glacial erosion https://couch80255.livebloggs.com/36021630/speak-yes-to-these-5-sectional-u-shape-tips