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The Trench

Arapahoe Basin

One of the tightest couloirs you will ever ski

Ski Touring Extreme

533 m
0 m
362 m
0-1 hrs
Low Point
3.6 km
High Point
4 km
The Trench Map

The "Trench" is a perfect name for this couloir. It could be the tightest line in all of Loveland Pass and Summit County. With its W facing aspect, steep gradient, and over width, it is by far one of the hardest lines you will ski. Please use extreme caution when skiing this line. You can access it via Mexican Hat of the Lenawee Mountain Hike and drop into it or hike straight up it. The line will start out fairly open, but then get very tight most of the way down. Make sure each turn is done wisely and access this line as early as you can. Follow the exit route out to the bottom.



Extreme skiing terrain above 45 degrees. These routes are reserved for experienced experts.

Extreme Exposure (E4)

4 out of 4

In case of a fall, the skier faces certain death.


4 out of 4

In the high mountains or remote conditions, all individuals must be completely autonomous in every situation.


  • Cliffs
  • Walk Required

Equipment required

  • Skins
  • Crampons

Similar routes nearby

Guidebooks in this area