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Areas in The Bihedral Area

Bihedral (Upper Tier), The 23 / 26 / 1 / 0 / 0 / 0 / 0 / 0 / 37
Castaway Block 0 / 0 / 0 / 1 / 0 / 0 / 0 / 0 / 1
Left Side, The 7 / 3 / 0 / 0 / 0 / 0 / 0 / 0 / 7
Lower Tier, The 7 / 14 / 0 / 0 / 0 / 0 / 0 / 0 / 16
Riviera, The 13 / 15 / 7 / 0 / 0 / 0 / 0 / 0 / 21
Access Issue: Seasonal Closure - 2018 Update Details

Description [Suggest Change]

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
Approach to The Riviera and The Bihedral. 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 [Suggest Change]

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 Arete, which Rossiter so obtusely refers to as "something of a classic".

82 Total Climbs

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Classic Climbing Routes at The Bihedral Area

Mountain Project's determination of the classic, most popular, highest rated climbing routes in this area.
5.6 4c 14 V 12 S 4b
 154
Chouette
Trad, Sport
5.7 5a 15 V+ 13 MVS 4b
 56
Sun Spot
Trad, Sport
5.8 5b 16 VI- 15 HVS 4c
 290
Topless Etiquette
Sport
5.8 5b 16 VI- 15 HVS 4c
 142
Dan's Line
Sport
5.8 5b 16 VI- 15 HVS 4c
 89
Trick or Treat
Trad, Sport
5.8 5b 16 VI- 15 HVS 4c
 74
It's Time For Change
Trad, Sport
5.8+ 5b 16 VI- 15 HVS 4c PG13
 84
Bihedral
Trad 2 pitches
5.9 5c 17 VI 17 HVS 5a
 187
Hold The Line
Sport
5.9+ 5c 17 VI 17 E1 5a R
 74
Devin's Dihedral
Trad, Sport, TR
5.10a 6a 18 VI+ 18 E1 5a
 192
Bihedral Arete
Trad, Sport 2 pitches
5.10a 6a 18 VI+ 18 E1 5a
 63
Flags of Our Fathers
Trad, Sport 3 pitches
5.10a 6a 18 VI+ 18 E1 5a
 79
Puff Daddy
Sport
5.10b 6a+ 19 VII- 19 E2 5b
 209
Rhodian Shores
Sport
5.10b/c 6b 20 VII 20 E2 5b PG13
 119
Le Nouveau Riche
Trad, Sport, TR
5.11a 6c 22 VII+ 22 E3 5c
 110
Sea Breeze
Sport
Route Name Location Star Rating Difficulty Date
Chouette Riviera
 154
5.6 4c 14 V 12 S 4b Trad, Sport
Sun Spot Bihedral (Upper Tier)
 56
5.7 5a 15 V+ 13 MVS 4b Trad, Sport
Topless Etiquette Riviera
 290
5.8 5b 16 VI- 15 HVS 4c Sport
Dan's Line Bihedral (Upper Tier)
 142
5.8 5b 16 VI- 15 HVS 4c Sport
Trick or Treat Bihedral (Upper Tier)
 89
5.8 5b 16 VI- 15 HVS 4c Trad, Sport
It's Time For Change Bihedral (Upper Tier)
 74
5.8 5b 16 VI- 15 HVS 4c Trad, Sport
Bihedral Bihedral (Upper Tier)
 84
5.8+ 5b 16 VI- 15 HVS 4c PG13 Trad 2 pitches
Hold The Line Bihedral (Upper Tier)
 187
5.9 5c 17 VI 17 HVS 5a Sport
Devin's Dihedral Riviera
 74
5.9+ 5c 17 VI 17 E1 5a R Trad, Sport, TR
Bihedral Arete Bihedral (Upper Tier)
 192
5.10a 6a 18 VI+ 18 E1 5a Trad, Sport 2 pitches
Flags of Our Fathers Bihedral (Upper Tier)
 63
5.10a 6a 18 VI+ 18 E1 5a Trad, Sport 3 pitches
Puff Daddy Bihedral (Upper Tier)
 79
5.10a 6a 18 VI+ 18 E1 5a Sport
Rhodian Shores Bihedral (Upper Tier)
 209
5.10b 6a+ 19 VII- 19 E2 5b Sport
Le Nouveau Riche Riviera
 119
5.10b/c 6b 20 VII 20 E2 5b PG13 Trad, Sport, TR
Sea Breeze Riviera
 110
5.11a 6c 22 VII+ 22 E3 5c Sport
More Classic Climbs in The Bihedral Area »

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Photos

E Johnson
Boulder, CO
E Johnson   Boulder, CO
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! Apr 3, 2007
Dane Casterson
Boulder
Dane Casterson   Boulder
Does anyone know what a Bihedral is? Feb 22, 2011
Ken Duncan
Ft Collins, CO
Ken Duncan   Ft Collins, CO
I assume two dihedrals. Dec 15, 2012
Adam Kroz
Boulder, CO
Adam Kroz   Boulder, CO
I left a navy blue Icebreaker thermal up here yesterday, in case anyone picked it up. Thanks! Apr 1, 2013
Any good camping nearby? Preferably free? May 22, 2013
Todd C
San Diego
Todd C   San Diego
FOUND. I found a couple of Petzl quickdraws on 11/12 2016. If they are yours, just reply to this post with a description including the tape on them, and I'll figure out a way to get them back to you. Nov 12, 2016
Left a draw on Hold The Line today. Will be back to get it tomorrow. If you find it, please don't steal it :) Jul 27, 2017

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