What Are U Shaped Valleys? A U-shaped valley is an edifice of geology that has steep, high sides and an elongated or flat 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 features. https://sofas-and-couches46325.ja-blog.com/29851851/sectional-u-shape-the-ultimate-guide-to-sectional-u-shape