A "Mountain" fold is not actually a special fold of any sort. It simply indicates the direction in which the paper is folded, and is the opposite of a "Valley" fold. Because of this, the nature of the fold depends on how you're looking at the paper.
To see an example, take a piece of paper and fold it in half. Now set it down on a flat surface, with the two edges down and the new crease pointing upwards. You're now looking at a mountain fold.
Now flip it over, so that the paper is resting on the crease (and perhaps tipping over), and the two sides are pointing upwards. You're now looking at a valley fold.
its a mountain fold.look it up mountain fold online or a origami book
you fold it
who was the first person to fold origami
Fold the paper.
It's when you fold the paper in half down the center and when you stand the folded paper on a flat surface, it sticks up like a mountain!
Origami, of Japanese origin, is a nice way to fold paper into recognizable figures. So, you fold paper.
Get a scrap of paper and fold it.
you fold it. Nah.
You can see the diagram and fold.
Easy. Just fold
Below is a related link to a video tutorial on how to fold an origami Spider .
check this out:www.origamivideo.net/