What Are U Shaped Valleys? A U-shaped valley is a geomorphological formation with high, steep sides and a rounded or flat valley bottom. These valleys are created by glaciation. They are often filled with lakes, rivers, sandtraps on golf course kettle lakes (water hazards), or other natural features. Glacial erosion https://sofasandcouches86551.blogofoto.com/61084773/is-sectional-u-shape-just-as-important-as-everyone-says