Here's how to tie the world's most useful knot in seconds

Also known as the “lineman's loop,” the Alpine butterfly knot has been voted by adventurers and MacGyvers of all walks as the world's most useful, all-purpose loop-style knot. Easy, strong and versatile, it's a must-have addition to any reputable knotter's arsenal. Luckily, this simple loop takes less than a minute to tie and can be used in a variety of situations, from climbing to picking up equipment off the ground, and even in emergencies.

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What is the Alpine Butterfly Knot?

The alpine butterfly knot is a sturdy loop that can be tied anywhere between two ends of a rope, creating a strong knotted anchor for attaching to a carabiner or simply hanging from a branch or hook. You can tie as many butterfly knots as needed onto a single rope line; This is especially useful for multiple climbers on one rope line. But it's not just useful for climbing.

The alpine butterfly knot is a versatile knot with a multitude of uses, from outdoor sports to camping and even around the home. This knot is extremely strong, so it is especially preferred by outdoorsmen, hikers and climbers; hence the prefix “alpine” in its name.

Although the alpine butterfly gets tighter under weight, it is surprisingly (and fortunately) easy to untie and remove.

There are a few different ways to tie this knot, and they all work equally well. We use the figure eight step by step method below. It's simple and fast, and anyone can master this knot in a few tries.

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How is the Alpine Butterfly Knot Useful?

One of the most popular uses of the alpine butterfly knot is as an easy and reliable way to attach gear to a rope. The fixed loop in the middle of a rope line is ideal for securing carabiners, harnesses, or anything else you want or need to attach or hang.

Another primary use of this loop is to create multiple attachment points on a single rope line. Because you can tie as many butterfly knots as you want in a single line, the loop is an easy way to secure multiple anchors for any reason. This can be especially useful in search and rescue or other situations where multiple people or items need a single rope.

Finally, it's kind of miraculous how easily the Alpine butterfly knot comes loose, regardless of how much weight is being carried on it and how tightly it's tucked. When you're done, pull through the top and bottom loops; the node will disappear. Connecting is not as easy as untying, but anyone can learn quickly. Here's how to tie the alpine butterfly knot in five simple steps.

How to Tie an Alpine Butterfly Knot: Step by Step Guide

1. Create a Loop in the String

Twist the rope around your hand once to create a single loop.

2. Make a Figure Eight

Double the first loop once to create a basic figure eight with the string.

3. Pull the Top String Down

Take the top part of the top figure eight loop and fold it towards the bottom of the rope to form two concentric loops.

4. Pull the Rope through the Loop

Here's the messiest part, actually creating the knot. Pull the bottom rope upwards through the first loop you created. This will begin to tighten the knot once it is properly inserted.

5. Tighten the knot

Pull both ends of the rope to tighten the knot and you're there! When done correctly it will look exactly like the beauty above; a useful ring with a strong butterfly-shaped knot at the bottom. Repeat this process along your rope line for multiple loops.