Origami, the ancient Japanese art of paper folding, offers a world of creativity and fun. One of the most iconic and rewarding origami models is the mountain fold, which forms the basis for many complex structures. In this comprehensive guide, we'll walk you through the mountain fold step by step, ensuring you master this fundamental origami technique.

Before we dive into the mountain fold, let's ensure you have the right paper. Origami paper, or 'kami,' is traditionally used. It's thin, colorful, and square-shaped, typically measuring 6 x 6 inches. Now, let's get started!

Understanding the Mountain Fold
The mountain fold is a fundamental origami technique that creates a triangular shape. It's called a 'mountain' fold because it resembles a mountain peak. This fold is the building block for many complex origami models, so mastering it is crucial.
![[Paper TV] Origami mountain 산 종이접기 折り紙 マウンテン como hacer montaña de papel](https://i.pinimg.com/originals/9b/e5/09/9be50992b3f40c18cc80bf0ea1350929.jpg)
In this section, we'll explore two ways to perform a mountain fold: the single mountain fold and the double mountain fold.
Single Mountain Fold

To create a single mountain fold, follow these steps:
- Start with a square piece of paper, colored side facing down.
- Fold the paper in half diagonally, creating a triangle. Crease well and unfold.
- Fold the paper in half along the other diagonal, creating another triangle. Crease well and unfold.
- Now, fold the paper in half horizontally, creating a rectangle. Crease well and unfold.
- Finally, fold the paper in half vertically, creating another rectangle. Crease well and unfold.
- Your paper should now have creases forming an 'X' shape. Fold the paper along these creases to form a small triangle at the center. This is your single mountain fold.
Practice this fold a few times to get the hang of it. Once you're comfortable, let's move on to the double mountain fold.

Double Mountain Fold
The double mountain fold is simply two single mountain folds performed one after the other. Here's how to do it:
- Start with a square piece of paper, colored side facing down.
- Perform a single mountain fold as described above.
- Unfold the last step of the single mountain fold, so you're back to a square piece of paper.
- Perform another single mountain fold. This time, when you fold the paper to form the final triangle, don't unfold it.

You should now have a double mountain fold. The paper will look like a small kite with a point at the top and bottom.
Applying the Mountain Fold
















![[Paper TV] Origami mountain 산 종이접기 折り紙 マウンテン como hacer montaña de papel](https://i.pinimg.com/originals/32/77/d0/3277d0f0e46c10b97bfc31562fba17f9.jpg)



Now that you've mastered the mountain fold let's explore how to use it in two popular origami models: the origami boat and the origami bird base.
These models will help you understand how the mountain fold is used to create more complex structures. Remember, practice makes perfect, so don't hesitate to try these models multiple times.
Origami Boat
The origami boat is a classic model that uses the mountain fold to create its base. Here's how to make one:
- Start with a square piece of paper, colored side facing down.
- Perform a double mountain fold.
- Fold the top two corners to the center line. The points should meet at the center.
- Fold the bottom two corners to the center line, overlapping the top layers.
- Fold the top and bottom points to the center line, creating a pocket at the top and bottom.
- Open the pockets to reveal your origami boat!
Your boat should now be able to float on water. Isn't that cool?
Origami Bird Base
The origami bird base is a more complex model that uses the mountain fold to create its wings. Here's how to make it:
- Start with a square piece of paper, colored side facing down.
- Perform a double mountain fold.
- Fold the top two corners to the center line, creating a kite shape.
- Fold the top layer down, creasing well. Unfold.
- Fold the top two corners to the center line again, but this time, fold the top layer up, creating a pocket.
- Fold the bottom two corners to the center line, overlapping the top layers.
- Fold the top and bottom points to the center line, creating a pocket at the top and bottom.
- Open the pockets to reveal your origami bird base. You can now add details to create a specific bird design.
Congratulations! You've just created a bird base using the mountain fold. Isn't origami amazing?
Origami is a journey of discovery and creativity. The mountain fold is just the beginning. There are countless models and techniques waiting for you to explore. So, grab your paper and start folding! Who knows what origami masterpiece you'll create next?