What Are U Shaped Valleys? A U-shaped valley is an geological formation with steep, high sides and a rounded or flat valley bottom. They result from glaciation and are frequently filled with lakes, rivers and sand traps found on golf courses kettle lakes (water hazards) and other natural features. Glacial https://couches45274.blogs100.com/30330158/8-tips-for-boosting-your-sectional-u-shape-game