What Are U Shaped Valleys? A U-shaped valley is a geological formation that has high, steep sides and flat or rounded valley bottom. These valleys are created by glaciation. They are often filled with lakes or rivers, sandtraps along a golf courses kettle lakes (water hazards) or other natural features. https://sofas-and-couches67666.blog2news.com/30368214/why-sectional-u-shape-is-still-relevant-in-2023