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Apocalypse Couloir

Grand Teton National Park

Classic Teton couloir with rappel entry and two chokes

Ski Touring Severe

17 km
1.4 km
1.4 km
7-8 hrs
Low Point
2 km
High Point
3.1 km
Apocalypse Couloir Map

Start at the end of Moose-Wilson Road (either north from Moose or south from Wilson works). Skin along the groomed road until reaching the Phelps Lake summer trail. (Should see a skin / XC ski track.)


Cross the lake, then pick up a skin track up the east ridge of Prospectors. Drop in for Apocalypse is at ~10,150’. You’ll find a rappel anchor on a tree. Two rappels needed — we used two 60m ropes. Second rappel station is on a rock half-way to the “cave.”

Two chokes on the descent — one before the turn right, then second toward the bottom. Second choke might require a rappel (anchor on skiers right, or build a V-thread in the ice). We were able to side-slip during a good snow year.

Ski along the Death Valley summer trail, then (1) skin up the ridge on the northwest border of Phelps if you started from Moose, or (2) ski / skate over Phelps Lake if you started in Wilson.

Full trip report: https://www.grizzliesandavalanches.com/apocalypse-couloir-ski-descent/



Steep skiing at 38-45 degrees. This requires very good technique and the risk of falling has serious consequences.

High Exposure (E3)

3 out of 4

In case of a fall, death is highly likely.


2 out of 4

Away from help but easily accessed.

Best time to visit

between January and March


  • Cliffs
  • Couloir
  • Ski Mountaineering

Equipment required

  • Rope
  • Skins

Similar routes nearby

Guidebooks in this area