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The Bihedral Area
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The Bihedral Area


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Submitted By: Kreighton Bieger on Sep 13, 2006
Administrators: Ben Mottinger, Leo Paik, John McNamee, Frances Fierst, Monomaniac
Elevation: 6,850 feet
Latitude: 40.0034  Longitude: -105.3969 
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BETA PHOTO: The Bihedral Area.


Description 

The Bihedral Area includes at least 4 sub-areas: The Bihedral, The Riviera, the Left Side and The Lower Tier. For organizational purposes, this is subdivided here. This photo may help.

The Bihedral Area rock is typical Boulder Canyon granite climbing. Generally less than vertical on bullet hard grey granite. Good friction with a high concentration of slopers, both large and small, and positive incut edges. The Bihedral crag itself is identified by a huge, left-facing dihedral and sits on the north side of the canyon. The dihedral is split by a prow about 1/2 way up. The Riviera is located down & right of The Bihedral. The Left Side is located to the left of The Bihedral. The Lower Tier is located below the The Bihedral (Upper Tier) upper tier.


Getting There 

Drive 7 miles up the canyon (zero at the bridge a la Rossiter), park just past the Riviera at a pullout on the right, or there is shady parking on the left side identified by a west-facing "No Camping" sign nailed to a tree. The huge, left-facing dihedral of the Bihedral is obvious above you. Cross the road, walk down a bit and pick a line up a boulder field and scoot left around a short broken buttress. 4th class it up past some trees on your right and gain a nice ledge at the bottom of the big dihedral. There are a few good routes here, but the most well known is the 2 pitch Bihedral route, which Rossiter so obtusely refers to as "something of a classic".


The Classics

Mountain Project's determination of some of the classic, most popular, highest rated routes for The Bihedral Area:
Sun Spot   5.7     Trad, Sport, 1 pitch, 100 feet   The Bihedral (Upper Tier)
Topless Etiquette   5.8     Sport, 1 pitch, 85 feet   The Riviera
It's Time For Change   5.8     Trad, Sport, 1 pitch, 90 feet   The Bihedral (Upper Tier)
Bihedral   5.8+ PG13     Trad, 2 pitches   The Bihedral (Upper Tier)
Diamonds and Rust   5.9     Sport, 1 pitch, 80 feet   The Bihedral (Upper Tier)
Hold The Line   5.9     Sport, 1 pitch, 100 feet   The Bihedral (Upper Tier)
Flags of Our Fathers   5.9+     Trad, Sport, 3 pitches, 200 feet   The Bihedral (Upper Tier)
Devin's Dihedral   5.9+ R     Trad, Sport, TR, 1 pitch, 60 feet   The Riviera
Puff Daddy   5.10a     Sport, 1 pitch, 65 feet   The Bihedral (Upper Tier)
Bihedral Arete   5.10a     Trad, Sport, 2 pitches, 180 feet   The Bihedral (Upper Tier)
Hound's Tooth   5.10b     Sport, 1 pitch, 80 feet   The Lower Tier
Le Nouveau Riche   5.10b PG13     Trad, Sport, TR, 1 pitch, 85 feet   The Riviera
Rhodian Shores   5.10b     Sport, 1 pitch, 100 feet   The Bihedral (Upper Tier)
Sea Breeze   5.11     Sport, 1 pitch, 60 feet   The Riviera
Sands of Iwo Jima   5.11c/d     Sport, 1 pitch, 50 feet   The Bihedral (Upper Tier)
Browse More Classics in The Bihedral Area

Featured Route For The Bihedral Area
Great tip laybacks lead to the third bolt.<br />Photo by Luke Clarke.

Sands of Iwo Jima 5.11c/d  CO : Boulder Canyon : ... : The Bihedral (Upper Tier)
Exquisite position and movement. You will encounter laybacks, smears, crimps, palming, dynos, backsteps, flags, and an overhang. Quite a few moves packed into a short pitch 200 feet above the ground. Clip the first bolt by climbing near the anchors and reaching right. Then start climbing below the first bolt. This is so you do not fall directly onto the belay. There is one rest below the overhang....[more]   Browse More Classics in CO


Photos of The Bihedral Area Slideshow Add Photo
Approach to The Riviera and The Bihedral.

BETA PHOTO: Approach to The Riviera and The Bihedral.

Another difficult boulder problem along Middle Boulder Creek, on the Happy Hour Boulder.

Another difficult boulder problem along Middle Bou...


Comments on The Bihedral Area Add Comment
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By E Johnson
From: Boulder, CO
Apr 3, 2007

Ticks have arrived. Despite a tick check of clothing and ankles, a baby tick made it home with me and was discovered inside my shirt (4 layers deep). Be thorough in your tick checks!