What Are U Shaped Valleys? A U-shaped valley is a geological formation that has steep, high sides and a rounded or flat valley bottom. These valleys are formed by glaciation. They are often filled with lakes or rivers, sandtraps along a golf courses kettle lakes (water hazards) or other natural https://sofasandcouches-com91844.shotblogs.com/how-to-tell-if-you-re-prepared-for-sectional-u-shape-43945028