How to Tie the Alpine Coil
Usage
The alpine coil is a way to coil a long rope — most often a climbing rope — into a neat bundle you carry over one shoulder, secured with the rope's own ends. Climbers use it because the coil can stay attached to a harness, ready for immediate use instead of packed away. Also known as the mountaineer's coil, it doubles as a plain storage coil for very large ropes.
Why Learn the Alpine Coil?
If you carry a long rope — up a multi-pitch route, an alpine ascent, or a search-and-rescue staging area — the alpine coil keeps it out of the way, balances the load across your body, and deploys in seconds: pull the end free, unwrap a few turns, and throw.
It also carries some heritage: TraditionalMountaineering.org, quoting Jim Frush, then President of the American Alpine Club, calls the coiled mountaineer's rope "the symbol of our sport."
Common Uses
Climbing
- Securing a coiled rope to a harness on multi-pitch routes.
- Managing rope during alpine ascents.
Search and Rescue
- Organizing a rope for quick deployment — pull the end, unwrap, and throw.
Household / Workshop
- Coiling very large ropes for storage.
Other Names
Category
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Notable Features
- Built for long ropes: The technique is ideal for longer and larger ropes that would overwhelm a hand-sized coil.
- Carries well: Worn over one shoulder, it distributes load across the harness points and keeps your balance while scrambling.
- Quick access: The rope stays ready for immediate use — no unpacking a stubborn bundle.
Similar Knots
Butterfly Coil vs. Alpine Coil
- Advantage: The butterfly coil is the modern alternative for pure rope transport and puts less twist into the rope.
- Disadvantage: It cannot be attached to a harness for climbing — the alpine coil keeps that job.
Security Level
Tied snug, the wrap-and-tuck finish holds the coil bundled on your harness with nothing but the rope's own ends. Loose coils can slip off the harness, so verify the coil is tight before you climb. When both rope ends are long enough, tying them together with a reef knot adds extra security.
Downsides
- Takes practice: Neat, tight, uniform coils don't happen on the first try — a set of knot tying cards is a handy way to drill the finish.
- Somewhat bulky: The finished bundle is bigger than more compact carrying methods.
- Twist build-up: Each same-direction loop adds a half-twist, and in an alpine coil those twists stack — the cause of kinks and tangles on deployment. The over/under method below is the fix.
History
The alpine coil has no entry in The Ashley Book of Knots (1944). Ashley did catalogue storage coils that lock the same way — working end wrapped around the gathered coil and tucked back through — but described them as ways to hang a rope in a loft, not to carry one up a mountain. The named technique and its harness-attached climbing application appear to be a later development from the mountaineering community, even as the butterfly coil has taken over everyday rope transport.
How to Tie the Alpine Coil
This is the standard hand-coiled version with the wrap-and-tuck finish. If the finish is hard to picture from flat steps, the Knot IQ app has the alpine coil in full 3D — slow the animation down and watch exactly where the tail tucks through the bight.
Step 1
Hold the rope about 3 ft (1 m) from its end with one hand.
Step 2
Grasp the rope with your other hand as far away as you can comfortably reach, then bring your hands together to form a loop. Transfer the loop to the hand nearer the rope's end.
Step 3
Repeat, forming uniform loops, until the whole rope is coiled.
Step 4
Bring both ends to the top of the coil and form a bight — a short loop — in the standing end (the side you are not wrapping with).
Step 5
Wrap the working end around the strands of the coil and the bight together, working forward so each new wrap sits closer to the bight.
Step 6
When only a short tail remains, tuck the working end through the bight.
Step 7
Pull the standing end of the bight to cinch it down and capture the working end tight. If both ends are long enough, you can finish by tying them together with a reef knot for extra security.
Pro Tip: Always pay the rope out in the same direction you coiled it. Reversing direction — or passing an end through the middle of the coil — puts overhand knots into the rope during deployment.
Coiling Without Twists (Over/Under Method)
Step 1
Coil exactly as above, but alternate the orientation of each successive loop — make the first loop with the running end on top, the next with it on the bottom, and so on.
Step 2
Because alternating loops twist in opposite directions, the half-twists cancel out instead of stacking up. Finish with the same bight-and-wrap tie-off as the standard method.
FAQ
What is the alpine coil used for?
Carrying a long rope — most often a climbing rope — coiled over the shoulder and secured so it stays attached to a harness, organized and ready for immediate use on multi-pitch routes, alpine ascents, and search-and-rescue staging. It also works as a plain storage coil for very large ropes.
What is the difference between the alpine coil and the butterfly coil?
The butterfly coil is the modern alternative for transporting a rope, and it puts less twist into the rope — but it cannot be attached to a harness for climbing. The alpine coil is the older style: more prone to twists and tangles, but it stays on the harness ready for use, sits over one shoulder out of the way of a pack, and balances weight while scrambling.
Why does my rope get twists or knots when I use an alpine coil?
Each same-direction loop adds a half-twist, and in an alpine coil those twists all build up the same way. Two fixes: coil over/under (alternate each loop's orientation so the twists cancel), and always pay the rope out in the direction it was coiled — reversing, or passing an end through the coil, puts overhand knots into the rope.
Is the alpine coil the same as the kiwi coil?
They're related but not the same. The kiwi coil is a rope-shortening technique for rope teams — taking in coils of an already-tied-in rope to close the distance between climbers — while the alpine coil is a way to coil and carry a loose rope. The kiwi coil requires professional instruction: incorrectly tied-off coils have caused real fatalities.
Is the alpine coil related to the alpine butterfly knot?
No. The alpine butterfly knot is a load-bearing loop tied in the middle of a rope; the alpine coil is a method of coiling a whole rope for carrying. They share only the word "alpine."
Important Notes on Safety
The alpine coil is a rope-management technique — it carries and organizes a rope, but it is not itself a climbing tie-in, anchor, or load-bearing knot. Before climbing, always verify the coil is tight and the securing knot is snug, because loose coils can unravel or slip off the harness. Be aware that in the body-carried form clipped off to a harness, the coil's securing knot — not your normal tie-in — can end up taking the load in a fall, and in related rope-team techniques like the kiwi coil, incorrectly tied-off coils have caused real fatalities. Any climbing or rope-team use of coiling techniques calls for professional instruction, not a blog post alone.
