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Big Cottonwood Canyon Climbing (2026): Outside Corner (5.7, 3p), Crescendo (5.9, 4p)

Big Cottonwood Canyon Climbing (2026)

Routes:

- Outside Corner (5.7, 3p)
- Crescendo (5.9, 4p)

Region: Utah
Elev: ~4,900 ft
Rock: Quartzite
Mode: 
Date(s): 2026(x1 day)
Partner(s): Josh Schmidt

Big Cottonwood Canyon (BCC) is the lesser-known of the two Cottonwood Canyons, despite offering excellent climbing. Hundreds of routes are spread across dozens of crags lining both sides of the canyon. The climbing is primarily on quartzite—slick and hard, but featured with holds that jut out at all angles. Protection can be trickier than in the granite of Little Cottonwood Canyon (LCC), so BCC has a higher proportion of sport routes, though trad climbing still makes up the majority of the area’s routes.

The first time I climbed at Big Cottonwood Canyon was in May 2026, when I was looking for a climbing area to fill a gap between Red Rocks and the Valley and got inspired to drive a triangular route and check out the Cottonwood Canyons. I did a morning linkup of the classic Outside Corner (5.7, 3p) and Crescendo (5.9, 4p).

On this page, I give photos from climbing at Big Cottonwood Canyon, organized by climb and date. At the bottom of the page, I keep a list of the climbs I've done in Big Cottonwood Canyon.

Route Overlays

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Climbs I've Done

CLICK ON ROUTE TO DROP DOWN CONTENT

Date: May 3, 2026 (Sun)
Partner: Josh Schmidt
I wanted to sample the quartzite of Big Cottonwood Canyon while I was in the area, so Josh—who I had climbed Pentapitch w/ Sasquatch var. (5.9+, 4p), Angering the Angered (5.9+,7p), and Stiffler's Mom (5.11-, 6p) with the previous day—suggested a quick morning link-up: Outside Corner (5.7, 3p) into Crescendo (5.9, 4p) on JHCOB Wall.

We brought a 40m rope and a couple of microtraxions to keep things moving with some light simul-climbing. Despite it being a Sunday, we scored the first parking spot and headed straight for Outside Corner. Josh led the first two pitches, linking them with a bit of simuling, and I took the final pitch to the top. The climb took a casual 53 minutes, with fun, ledgy movement on featured quartzite.

After topping out, we descended, swung by the car to drop extra gear and jackets (the sun had finally hit the wall) and grab a few more draws, and headed back up for round two—Crescendo. Josh again led the first two pitches with some simul-climbing, and I linked the final two into one longer pitch (no simul needed). The exposure along the arete, the steadily increasing difficulty—and quality—and the abundance of bolts made for a really engaging, fun climb. We topped out in about 40 minutes.

Two laps, seven pitches total, and we were done in under three hours—back at the car with most of the day still ahead. Josh peeled off for a full schedule of errands, while I shifted gears to laundry, writing a trip report, and TR-soloing Bongeater (5.10d) over in Little Cottonwood Canyon.

History note:
Outside Corner—also known as Kelner’s Corner—was first climbed around 1953 by Harold Goodro and Dan Lynch, who left it unnamed (typical for the era). The route gained its alternate name after Alexis Kelner’s memorable 1955 ascent, when he, Dick Bell, and Cal Giddings reportedly huddled in the cave belay for two hours during a storm. The name “Outside Corner” later stuck after John Gottman popularized it in his 1979 guide Wasatch Quartzite.

Route Overlay

Pitch-by-Pitch Photos

Approach

2nd
If you park at the "Remnants of an Ancient Sea" pullout, hike up and angle left toward the wall via a beaten path through the scree field. You are heading for the main arete between the East Face and the North Face. Start the climb on the east side (left side) of the arete. 

Pitch 1

5.6
Climb the clean, crack-laced east face of the main ridge to a wide crack. Continue up to gain the arete and a small ledge. From there, follow the right (north) side of the arete, then the ridge crest, to a large ledge.
We linked P1+P2.

Pitch 2

5.7
Start just right of the belay on a varnished face (or take the crack on the left wall), and climb up through cracks, staying on the north side of the arete. Continue to a distinctive feature known as “the cave”—an obvious ledge with a good belay. 
We linked P1+P2.

Pitch 3

5.7
Step out the right side of the cave onto the north face and climb up through a series of broken, diagonally trending cracks. At the top, step right to split the roof via an opposing dihedral. Build an anchor in cracks set back from the cliff edge using gear.

Descent

Walk off
Hike up slightly and then right (west) where you'll find a great trail that leads down the oak riddled sub-ridge. Just past the parking area, near where the highway bridge crosses the creek, turn east (up canyon) and follow a moderate trail/scramble down through the purple shale layer.

Date: May 3, 2026 (Sun)
Partner: Josh Schmidt
Crescendo is a superb route that follows the clean, striking arete between First East Face and Inside Corner, about 30–50 feet left of Outside Corner. The name fits well: each pitch delivers a progressive increase in both difficulty and quality. Expect four pitches (30 m or less each) with two-bolt anchors at every belay. Protection is mostly bolted, supplemented with natural gear—bring a light rack of small to medium cams.

As mentioned in the intro for Outside Corner (5.7, 3p), Josh and I climbed Crescendo as our second lap on JHCOB Wall. Josh led the first two pitches with some simul-climbing, and I linked the final two into one longer pitch (no simul needed). The position along the arete, the steadily increasing difficulty—and quality—and the abundance of bolts made for a really engaging, fun climb. We topped out in about 40 minutes.

Route Overlay

Pitch-by-Pitch Photos

Approach

2nd
Same as for Outside Corner, but continue up the hill and follow fixed handlines to the base of the route.

Pitch 3

5.8, 70', 3 bolts + pro
(Pitches 3 & 4 can be linked, and the 3rd belay is hidden in a corner to the right.)
We linked P3+P4.

Pitch 4

5.9, 50', 5 bolts + pro
(Two options off the belay ledge: left is a bolt protected face; right is a fun dihedral. If doing the dihedral, a 3-inch cam right off the belay protects an easy move.)
We linked P3+P4.

• Steorts' Ridge (5.6, 3p)
• Social Engineering (5.10a, 1p)
• Force of Nature (5.11a, 1p)

List of Climbs I've done in Big Cottonwood Canyon

LIST MAINLY FOR PERSONAL RECORD-KEEPING | DATES I'VE CLIMBED THERE ON SECOND TAB

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Useful beta. Updated route information. Corrections. Historical notes. Interesting facts. No fluff please.
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