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Thunderbolt Peak
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Austrian Arete T 
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Southwest Chute 1 T 
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Southwest Chute 1 

YDS: Easy 5th French: 1+ Ewbanks: 3 UIAA: I ZA: 5 British: M 1c

Type:  Trad, Alpine, Grade III
Original:  YDS: Easy 5th French: 1+ Ewbanks: 3 UIAA: I ZA: 5 British: M 1c [details]
FA: First descent by Oscar Cook, Sylvia Kershaw, Mildred Jentsch, Hunter Morrison and Isabella Morrison, September 3, 1949
Season: Summer
Page Views: 1,311
Submitted By: smr123 Rathbun on Dec 8, 2010

You & This Route  |  Other Opinions (18)
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The crux for us on this route was definitely route finding, as there isn't much beta on this route. The chute V's out towards the upper-end and it's very important to stay to the right. Follow this up to a large chockstone that you can climb underneath. Climb on top of the chockstone and climb some easy 5th trending southeast and you'll come upon the summit block.


Bishop Pass Trailhead in South Lake to Bishop Pass to Thunderbolt Pass


There are 1/4 inchers on the top of the summit block. We lasso'd it, and aided up.

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By Ken H
From: Granite, UT
Jun 29, 2012
rating: Easy 5th 1+ 3 I 5 M 1c

This route is called 3rd class in guidebook but I think it depends a lot on snow. Plus if you want to stand on the very top it is 5th class for sure. If you just wanted to stand next to the summit pinnacle then maybe only 4th class. We had ice axes, crampons, rope, and some gear and used it all (June 2009). Since we had the rope I recall doing two raps back to the notch and down led the part from on top of the chock stones where you are to traverse on the 3 ft ledge as that was covered in snow.
By Gary Schenk
Jan 22, 2015
rating: 5.5 4b 13 IV+ 11 MS 4a

The easiest way up the summit block is at least 5.5

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