What Are U Shaped Valleys? A U-shaped valley is a geological formation that has steep, high sides as well as 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 https://www-sofasandcouches-com21548.fitnell.com/70661096/7-things-you-d-never-know-about-sectional-u-shape