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Hallett South Side
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Chaos Couloir 

Chaos Couloir 

Mod. Snow

   
Type:  Snow, Alpine, 7 pitches
FA: ?
Season: October - May
Page Views: 1,774
Submitted By: Kurt Johnson on Oct 31, 2006

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Nancy Bell stops to look at Chaos Couloir on her w...

Description 

Chaos Couloir is the beautiful snow gully that curves from Chaos Canyon up Hallett's east ridge. Perhaps it already has a different name, but I only know a few people who've been up there and have never heard it refered to by a name. It's a moderate snow climb much like Dragon's Tail, but not as steep at the top, and a good ski descent.


Location 

The first couple times I went up there, I accessed it from the couloir that goes up Hallett from the south side of Emerald Lake, which spits you onto the east ridge and makes it a bit of a mixed climb. From the top, scramble around the south side of the ridge staying just below the cliffs. You won't see the couloir until you're almost upon it. This drops you off at the upper half of Chaos Couloir. I initially took this route thinking it would be quicker than negotiating boulder-strewn Chaos Canyon, but after the Park gets a decent amount of snow it's faster and more straightforward to go up the canyon. It does make for a fun variation, however.

To get there from Chaos Canyon, take the Lake Haiyaha trail from Dream Lake. This may not be as easy as it sounds since, for me last May, it involved steeper and icier slopes than the couloir itself (literally), and which, for a friend who tried to head up there to do some bouldering a week later (in May!?), involved some thigh-deep post-holing. Because of this, it might actually be quicker and easier to take the "unimproved" trail which starts near the junction of the Mills Lake and The Loch trails. Once you get into Chaos Canyon, take the path of least resistance (starting from the left side of Lake Haiyaha) to the base of the route, which becomes obvious as you go further up the canyon. This approach allows you to do the entire couloir from the bottom up, although the upper half is steeper and more interesting.

However you start the route, once you top out, you can either downclimb (or ski if you brought 'em) or continue up the broad rocky ridge to the summit, which requires one more short climb up the summit snowfield. The easiest descent from here is down the Flattop trail, but Tyndall Gorge would be a more fun option.


Protection 

It's a good route to solo, but if you want to protect it, bring either pickets or a light rock rack for the sides of the couloir.



Photos of Chaos Couloir Slideshow Add Photo
A couple of skiers head up Chaos Couloir.
A couple of skiers head up Chaos Couloir.
Nancy Bell midway up Chaos Couloir.
Nancy Bell midway up Chaos Couloir.
Nancy Bell with the top half of Chaos Couloir in the background.
Nancy Bell with the top half of Chaos Couloir in t...
A skier descends Chaos Couloir.
A skier descends Chaos Couloir.
Comments on Chaos Couloir Add Comment
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By Brandon Miller
From: Ft. Collins, Colo
Oct 31, 2006

Fun stuff! Did the Emerald Lake way to Chaos, up the couloir, summited Hallet then skied down Tyndall and pretty much all the way back to Emerald. Really fun easy mountaineering loop. You get a really great view and perspective of the Park from the ridge going up to the summit of Hallet. I'd give it 3 stars just because it was that fun!

By Andy Leach
From: Fort Collins, CO
Apr 17, 2007

I climbed Chaos Couloir 4/15/07 and shot this video: www.leachfam.com/securearea/1movie.php?movieid=31

By John McNamee
Administrator
From: Littleton, CO
Apr 17, 2007

Thanks for posting the link. Looks like you had a lot of fun!