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Peak 11,300
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South West Ridge T 

South West Ridge 

YDS: 5.8 French: 5b Ewbanks: 16 UIAA: VI- ZA: 15 British: HVS 4c M4

Type:  Trad, Mixed, Alpine, 4100', Grade V
Original:  YDS: 5.8 French: 5b Ewbanks: 16 UIAA: VI- ZA: 15 British: HVS 4c M4 [details]
FA: Niklaus Lotscher and Heinz Alleman, 1968
Season: March through May
Page Views: 6,065
Submitted By: Chris Sheridan on Jul 22, 2007  with updates from Martin le Roux and 1 more

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BETA PHOTO: Lower part of SW ridge of Peak 11,300

Register with the NP Mountaineering Headquarters in Talkeetna, AK before climbing in the park!



This classic route deserves a spot on every aspiring alpine climber's to-do list. The ridge offers sustained moderate difficulty with over 4000 ft of vertical rise in an amazing setting. The rock quality is generally good and objective danger acceptably low.

Joe Puryear's guidebook has a very detailed description and topo. Here's a summary that's meant to supplement that description.

- Start on the LHS of the ridge at 7,000'. Climb 40-50 degree snow for about 1,000' to reach the ridge crest at a level section (some people have bivvied here).

- Between 8,000' and 9,000' climb a series of rock steps (up to 5.8) with moderate-angle snow in between. Traverse left or right as necessary to find the easiest line. Partway up this section move left around the ridge crest (exposed) and climb the "Thin Man's Squeeze", a narrow chimney between two large blocks. Then climb a short 5.8 pitch on the RHS of a large headwall to reach a snow ramp that descends to the 1st col (good bivy site, but look out for crevasses).

- From the 1st col climb a steeping snow/ice slope (up to 55 degrees), then follow a snow arete and traverse L into a snow gully, the "S-Couloir". Part-way up the couloir at 9,700' is the "Grey Rock". Underneath this is a bivy ledge with enough room for two 2-person tents.

- Continue up the S-Couloir and climb a short 5.8 rock pitch on the RHS of "The Thumb" (large pinnacle). Downclimb and traverse to a rappel station, then rap 100' into the 2nd col at 10,000'. With enough snow it may be possible to dig a tent platform here. Beware of cornices. Retreat would be difficult once you've rapped into the col.

- From the 2nd col climb a rock face and an awkward L-leaning crack ("The Slot", 5.8, technical crux). Follow a corniced snow ridge for a couple of rope-lengths to a small pinnacle. Puryear's guidebook cover photo was taken from here. Downclimb 40' to the right (Puryear's guidebook say to rappel), then climb a short mixed gully (not as steep as it looks from the pinnacle). Continue up the final rock pitch (5.8). Exit R near the top.

- Continue up a a snowy ridge, traverse R to bypass a rock step, continue up a 45 degree snow gully (small bivy ledge near the top), then climb about 500' of 50-55 degree snow/ice to reach the summit. The summit is a large, flat snowfield that makes an exposed but otherwise good bivy site.


- From the summit head SE, bypassing a bergschrund. Traverse, downclimb and/or rappel diagonally across 40-50 degree snow/ice slopes below the ridge crest for about a half-mile to reach a small rock outcrop. Make two more rappels down snow/ice slopes to a level shoulder at 10,200' (good bivy site, but look out for cornices).

- At the end of the shoulder make about a dozen rappels off rock anchors down the steepening S ridge, traversing between rappels if necessary to regain the ridge crest. At the base of the ridge make one or two rappels down snow slopes, then rappel or jump across a bergschrund to reach the glacier. Head SW down the glacier to return to base camp, making a wide detour to minimize exposure to icefall risk from a hanging glacier higher up.


An alpine rock rack, pickets and 4-6 ice screws. Most of the climbing is on rock and snow, but ice screws may be needed for the final 500' and the upper part of the descent.

Puryear's guidebook suggests 1-3 days for the climb and 6-12 hours for the descent. Allow more time for the descent if the upper part of the SE ridge is mostly ice.


An alpine rock rack and pickets. A small selection of ice screws may be needed but most climbing is on snow or rock.

Photos of South West Ridge Slideshow Add Photo
Rock Climbing Photo: Ty Cook high on the Southwest Ridge of Peak 11,300...
Ty Cook high on the Southwest Ridge of Peak 11,300...
Rock Climbing Photo: Taken from around the same spot as the Puryear gui...
Taken from around the same spot as the Puryear gui...
Rock Climbing Photo: Me at the first col with Huntington in the backgro...
Me at the first col with Huntington in the backgro...
Rock Climbing Photo: The thin man squeeze
BETA PHOTO: The thin man squeeze
Rock Climbing Photo: Andy lovin' life
Andy lovin' life
Rock Climbing Photo: Andy following
Andy following
Rock Climbing Photo: Ty Cook leading one of the crux rock section on th...
Ty Cook leading one of the crux rock section on th...
Rock Climbing Photo: Andy Grauch midway through the first rock band wit...
Andy Grauch midway through the first rock band wit...
Rock Climbing Photo: Chris Sheridan and Ty Cook following easier terain...
Chris Sheridan and Ty Cook following easier terain...
Rock Climbing Photo: Ryan setting some pro on the traverse just before ...
BETA PHOTO: Ryan setting some pro on the traverse just before ...
Rock Climbing Photo: The Southwest ridge of peak 11,300.  Photo by Andy...
The Southwest ridge of peak 11,300. Photo by Andy...

Comments on South West Ridge Add Comment
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By Martin le Roux
From: Superior, CO
May 30, 2014

Excellent route. We climbed this in May 2014.

- Snow levels were low this year and we had to climb rock in a couple of places we weren't expecting, e.g. above the Thin Man Squeeze and getting up to the notch before the 2nd col.

- We found the last 500' of 50-55 degree slopes below the summit to be mostly ice with minimal snow cover. Don't skimp on ice-screws unless you're comfortable soloing that kind of terrain.

- Don't underestimate the descent. The first part is a long descending traverse across 45-50 degree slopes. As with the last part of the ascent we found mostly ice with only a few inches of snow cover. It took us about a dozen rope-lengths of traverses and diagonal rappels. Long ice-screws were essential for setting Abalakovs.

- Our 1st night's bivy was at the Grey Rock. There was just enough snow to dig platforms for two narrow tents.

- We spent three nights on the climb (Grey Rock, summit, and at 10,200' at the start of the rock rappels). We were moving slowly partly because there was more rock and ice than usual and partly because of bad weather on days 2 & 3.

- Puryear warns that the standard glacier descent is dangerous because of serac danger from above. He suggests a much longer alternative with more down-climbing and rappelling. We were keen to get back to camp and took our chances with a quick hike down the glacier. Judging from footprints it looked like everyone else had done the same... although there was one section where old footprints were buried by fresh icefall debris.
By Ryan Marsters
May 4, 2017

A couple parties summitted this year so far. Odd year - light winter, heavy spring.

We tried early May and encountered good climbing to the first col, though 2 ft of fresh snow hindered progress. The slope above the first col was quite avalanchey in the afternoon so we cut the day early and camped there (spacious). Minor earthquakes and several inches of fresh snow hit. Ran out of weather for the rest of the route; perhaps 7-8 single length raps and 1-2 double length raps to bail with tons of anchors set for a 60 m rope.

One party triggered sizable slabs on descent last week, but were able to protect with screws. They turned back on Dan Beard same day we turned back on 11,300 due to avy conditions. Ham and Eggs is already out.

For the first part of the climb:
1. simul several hundred ft of snow to 45 deg to base of first rock step.
2. First mixed pitch, right leaning gully with ~ one move of M4, 130 ft.
3. One rope length of snow
4. M3ish low angle flake gully on right
5. Short mixed M2ish step
6. 3 rope lengths of snow and easier mixed
7. Thin Man's squeeze, perhaps M2-3
8. One rope length of snow
9. Mixed pitch, mostly M2-3 with a couple moves of M4 , good rests before and after.
10. One rope length of snow down to the first col.
11. From there, several hundred feet of snow to the Gray Rock bivy, which we would've liked to do the first day. Next time.

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