Valley Foldvs Mountain Fold. With a valley fold the crease bends the paper up and the crease resembles a valley. How to fold a mountain fold.
Valley and mountain fold definition a valley fold is in its essence a paper fold that forms a trench. In this video i will show you how to do the valley fold and the mountain fold, the base folds of all origami. Fold the front flap back to the right, leaving a gap.
