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Routes in Circuit Breaker

Circuit Breaker TR 5.11b 6c 23 VIII- 23 E3 5c V2 5+
Type: TR, Boulder, 20 ft
FA: unknown
Page Views: 3,649 total, 29/month
Shared By: Will S on Jun 18, 2007 with updates
Admins: M. Morley, Adam Stackhouse, Salamanizer suchoski, Justin Johnsen, Vicki Schwantes

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Closures for Peregrine Falcon Protection Details


This is one of the classic crack boulder problems in the Valley. Approximately 20' tall with a short approach, flat landing, and easy walk off, this slightly leaning splitter finger crack is great for honing your thin fingercrack technique. Mostly first knuckle locks. Usually bouldered, but you could rig a TR if desired.

"Climb the beautiful splitter finger crack that angles up and left.
First 5 feet are the hardest by far." - ShaunG Gregg


Walk behind wooden cabin #20A in Half Dome Village straight up the hill to the trail through the trees that is leading up towards the side of the mountain. The boulder sits near the base of the mountain wall.


Pads and spotters.
Sean Kurnas  
Josh, I believe there's a slight correction/clarification to your directions; when you cross the small stone bridge, you're headed West, not East. Oct 11, 2015
Josh M.
Golden, CO
Josh M.   Golden, CO
Since the buildings are gone (see my comment on the Curry Village page), if you're looking for the Circuit Breaker, stay left at the trail junctions (as you're working your way east). When you cross a ditch over an unexpected, small, stone bridge, take the climber trail that heads off to the left (uphill) immediately afterward. Sep 23, 2015
Alex Bury
Ojai, CA
Alex Bury   Ojai, CA
This is a fun problem and worth the short hike up. Low crux with a heady topout. Im told the line just left goes at 5.12. Jun 19, 2015
Justin Johnsen
Nor Cal
Justin Johnsen   Nor Cal  
Good catch, Bryan. Since people haven't been finding this route in this area, I'll move it to Curry Village bouldering for now, and merge the newer version of this route's data into this original object.

I'll leave the Staircase Falls area though, so people can add the routes on the wall itself later. Jun 19, 2015
Bryan G
Bryan G   Yosemite
There's a climbers trail leading up to the base of it. The trail begins a little bit to the east of the Old Curry Area (Root Canal, Kevin's Traverse, ect...) It's been a few years since i walked up there so I don't remember the specifics other than that.

There's also some more photos and a video on the route page under the bouldering section: ?? Apr 16, 2015
I was looking for this problem a week ago and didn't think about the rockfall a couple years ago. Evidently it took out most of the cabins back there. Can anyone give some beta about how to find it now days? Thank you! Apr 16, 2015
The Reid guide has it as 5.11b TR or solo. Really fun lil boulder problem!!! Jun 18, 2011
Mark P Thomas
Mark P Thomas   Draper
I'm a trad climber. What is this in YDS? I originally heard it was 5.10d but every conversion chart I've seen would place V2 at 5.11a/b to 5.11d, more consistently at 5.11+/5.11d.

Really fun. 3 move crux then it gets gradually easier. It leaves your finger tips feeling hot! May 10, 2011
Andy Liu
Eastern Sierra
Andy Liu   Eastern Sierra
m-earle   USA
Be warned that the last move has spit off many unsuspecting climbers. While the move feels quite solid, I have heard of at least 3 different people taking the fall and fuck'n up their ankles. Aug 1, 2007