English glaciated valleys English U-shaped valley English U-shaped English 'U' shaped glacial valley U-shaped valley U-shaped glacial valley English glacial u-shaped valleys English glacial u-shaped valleys U-shaped U-shaped valleys U-shaped valley glacial u-shaped valleys English glacial trough English 'U' shaped glacial valley U-shaped glacial valley English English en.wikipedia.org U-shaped glacial valley English English English English u-shaped English u-shaped English English English U-shaped valleys English