What Are U Shaped Valleys? A U-shaped valley is a geological formation with high, steep 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. The erosion https://sofasandcouches05599.theobloggers.com/35919943/it-s-the-good-and-bad-about-sectional-u-shape