What Are U Shaped Valleys? A U-shaped Valley is an edifice of geology that has 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 courses, kettle lakes (water hazards), or other natural features. https://sofasandcouches-com91798.blogdosaga.com/29760674/the-little-known-benefits-of-sectional-u-shape