What Are U Shaped Valleys? A U-shaped valley is a geological formation with steep, high 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://sofasandcouches69718.digiblogbox.com/55105718/10-books-to-read-on-sectional-u-shape