What Are U Shaped Valleys? A U-shaped valley is an edifice of geology that has high, steep sides and a flat or rounded valley bottom. These valleys are created by glaciation. They usually contain lakes, rivers, sandtraps on golf courses, kettle lakes (water hazards) or other natural features. Glacial erosion https://sofas-and-couches73283.elbloglibre.com/29747119/a-how-to-guide-for-sectional-u-shape-from-beginning-to-end