1. GLACIATED VALLEYS
   1. BEFORE TRANSFORMATION
      1. Glaciers are V SHAPED
   2. AFTER TRANSFORMATION
      1. Glaciers are U shaped
      2. They also straighten up
2. CIRQUE AND TARN LAKES
   1. CIRQUE
      1. Wedging and plucking produces an armchair like depression called cirque
      2. AS THE CIRQUE ENLARGES AND CONVERGE -- ISOLATED HORN
      3. EXAMPLE:- MATTERHORN IN THE SWISS ALPS
   2. TARN
      1. After the glacier melts away the cirque it forms a lake called the tarn