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 course, kettle lakes (water hazards), or other natural features. https://sofas-and-couches37869.blognody.com/29887987/how-to-tell-the-sectional-u-shape-to-be-right-for-you