Key takeaways
- Crevasse rescue extracts a climber who has fallen into a crevasse on a glacier.
- The sequence: arrest the fall, build an anchor, transfer the load, then haul (or have them ascend).
- Hauling uses mechanical-advantage pulley systems (e.g., a Z-pulley).
- It's an essential, regularly practiced skill — crevasse falls are sudden and life-threatening.
This is general educational information, not a substitute for hands-on training. Learn and practice crevasse rescue with qualified instruction before traveling on glaciers.
What crevasse rescue is
Crevasse rescue is the set of techniques for extracting a climber who has fallen into a crevasse during glacier travel. Because crevasse falls happen suddenly — often through a hidden snow bridge — and a fallen climber may be injured and unable to help themselves, the team’s ability to perform a fast rescue is what saves a life.
The principles
- Arrest the fall — the roped team stops the fall and holds the load.
- Build an anchor in the snow and transfer the climber’s weight onto it.
- Assess & communicate with the fallen climber.
- Extract — they ascend the rope (using prusiks or ascenders), or the team hauls them out with a mechanical-advantage Z-pulley (3:1) system.
A partner punches through a snow bridge into a crevasse; the other team members drop and arrest the fall, build a snow anchor, transfer the load, and rig a Z-pulley — hauling their partner out in a sequence they’d drilled until it was automatic.
Why it’s non-negotiable
Crevasse falls give no warning, and there’s no time to figure out the rescue during a real one. Anyone traveling glaciated terrain must learn and regularly practice crevasse rescue, alongside roped-team travel and anchor skills.
The bottom line
Crevasse rescue is the life-or-death skill of getting a fallen climber out of a glacier crevasse — arrest the fall, build an anchor, transfer the load, and haul them out (often with a Z-pulley) or have them ascend the rope. Because crevasse falls strike suddenly through hidden snow bridges, every glacier traveler must learn and regularly practice it; there's no time to improvise during the real thing.
Frequently asked questions
What is crevasse rescue?
Crevasse rescue is the set of techniques used to get a climber out of a crevasse they've fallen into while traveling on a glacier. It involves the roped team arresting the fall, building a secure anchor, transferring the fallen climber's weight to that anchor, and then hauling them out with a pulley system or having them ascend the rope themselves.
What are the steps of crevasse rescue?
Broadly: (1) arrest the fall as a team, (2) build a solid anchor in the snow and transfer the load onto it, (3) assess the situation and communicate with the fallen climber, and (4) extract them — either they ascend the rope using prusiks or ascenders, or the team hauls them out with a mechanical-advantage system like a Z-pulley (3:1). The exact method depends on the situation and the victim's condition.
Why is crevasse rescue an essential skill?
Because crevasse falls on glaciers happen suddenly and without warning (often through a hidden snow bridge), and a fallen climber may be injured, hanging in a cold crevasse, and unable to self-rescue. The team's ability to perform a rescue quickly is what saves them. Anyone traveling on glaciated terrain must learn and regularly practice crevasse rescue, because there's no time to figure it out during a real fall.
Sources
- Crevasse rescue — American Alpine Club
- Glacier travel & rescue — The Mountaineers