Three Dihedrals Rock Climbing
|GPS:||39.999, -105.412 Google Map · Climbing Area Map|
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|Shared By:||Ron Olsen on Mar 29, 2006|
|Admins:||Leo Paik, John McNamee, Frances Fierst, Monty, Monomaniac, Tyler KC|
Following a five month closure to protect nesting golden eagles, the Roosevelt National Forest has reopened Eagle Rock climbing area in Boulder Canyon.
“The Boulder Canyon eagles successfully raised one strong and healthy eaglet this year,” said wildlife biologist Aurelia DeNasha with the USDA Forest Service. “Two chicks hatched initially, but unfortunately only one survived to fledge, which isn’t uncommon in birds of prey.”
Post-fledging visits to the nest did not reveal the exact cause of death of the second chick, but cooperation by climbers with the closures are crucial to the eagles’ success each season.
“Golden eagle pairs are most susceptible to disturbance when choosing a nesting site. These closures allow the birds to pick the best site for survival without impact of other factors, such as human presence. Once chosen, the nest site stays closed until the eagles fledge in late July,” said DeNasha.
After the eagles’ site selection was made unused areas reopened in April.
The annual nesting closures include popular rock climbing spots at Eagle Rock, Blob Rock, Bitty Buttress and Security Risk in Boulder Canyon. These areas are located along Colorado Highway 119, approximately 1.5 miles east of Boulder Falls.
Effective through July 31, 2020, the closures protect a long-established golden eagle nesting territory. Happy Hour, Bihedral and Riviera remain open as long as visitors stay out of the closed areas.
The Boulder Ranger District partners with the Boulder Climbing Community and the Access Fund to monitor nesting progress and to inform climbers about the importance of giving the eagles space to raise their young.
It is against federal and state law to disturb any nesting bird of prey. Only employees, volunteers, and wildlife professionals under an agreement with the Forest Service enter nesting areas for monitoring purposes. This is for the integrity of nest and the safety of the eagles, those conducting surveys, and the public. Visitors can help protect wildlife by respecting all closures and leaving immediately if you should accidentally enter one.
For the most current closure information, check signs in the areas, call the Boulder Ranger District office at 303-541-2500, or visit local climbing websites or fs.usda.gov/recmain/arp/rec…
(click on Boulder Canyon for more info).
Starting 4/21/20, Blob Rock, East Blob Rock, Bitty Buttress and Security Risk are now open to activities. Eagle Rock remains closed to climbing and all activities until 7/31/2020. This was confirmed with Matt Henry, Recreation Program Manager, Forest Service.
From K. Armstrong, FS Public Affairs, email@example.com, 970-222-7607: starting 3/20/19, Blob Rock, East Blob Rock, Bitty Buttress, and Security Risk are now open to activities. Eagle Rock remains closed to climbing and other activities through 7/31/19.
The Boulder Ranger District partners with the Boulder Climbing Community and the Access Fund to monitor nesting progress and to inform climbers about the importance of giviSee - fs.usda.gov/recmain/arp/rec….
Eagle Rock, Blob Rock, Bitty Buttress, and Security Risk will close Feb. 1 until July 31 for raptor nesting. Depending on updated information, the closure time can be shortened or lengthened.
Each year, Boulder Canyon raptor nesting area closures are in effect starting February 1st through July 31st at Eagle Rock, Security Risk, Blob Rock, and Bitty Buttress. However, the area is monitored and closures are periodically lifted early (due to no active nest, nest site failure, or early fledging). This monitoring program is a partnership with the Forest Service Boulder Ranger District, Boulder Climbing Community, and Audubon Society. Check back periodically during times of closure for updates. More info at fs.usda.gov/recarea/arp/rec…
This area is somewhat disjointed. The most popular face, containing the routes Dominator, Dom Perignon, and Dominatrix, is right next to the Clipboard Area, and is easy to access.
The other routes (Curvilinear, Pillar, Dihedral One, Common Denominator, Dihedral Two) are down and left of the Dominator area.
Below and left of Dominator:
A. Curvilinear, 10-, 1p, 40', gear. L-angling crack in secluded alcove.
B. Pillar, 7, 1p, 50', gear & bolt. RFD up L side of pillar.
C. A Cheval, 8, 100', bolts & gear.
D. Dihedral One, 6, 1p, 100', gear. Ramp to RFD.
E. Common Denominator, 9, 1p, 100', bolts & gear. Crack, arete, face.
F. Dihedral Two, 6 or 7, 1p, 100', gear. Ramp to bushy corner.
G. Dominatrix, 8 or 10-, 1p, 90', bolt & gear. Corner (8) or cracks (10a) to RFD.
H. Dominator, 10, 1p, 60', bolts. Overhanging hand cracks.
I. Dom Perignon, 9+, 1p, 60', bolts & gear. Hand crack.
1. Climb up the talus field above the Tyrolean Traverse. A dirt path starts at the top of the talus. Follow the path uphill a bit until the trail splits. Take the left branch, toward Tarot Wall. After about 10', a faint trail heads off right, up the hill. Follow this path uphill to a big tree at the base of the Dominator wall.
2. Instead of taking the trail to the left heading toward Tarot Wall, continue up the hill on the right trail branch. You'll eventually reach a steep wall with a scooped-out face; this is the route Strange Science. Go left and climb up some big boulders to a flat area. The Clipboard Area is to the right, and the Dominator wall is just left of that, at a right angle to the Clipboard wall. This is the most common approach.
Dominator wall is rust colored, slightly overhanging and laced with cracks; it's hard to miss.
To get to Curvilinear, Dihedral One, Common Denominator, and Dihedral Two:
Use approach #1. Start hiking up the hill toward the Dominator area. After a short distance, a faint path heads off to the left. Take this to get to these routes. You'll see a low-angle slab; that's the start of Dihedral One, Common Denominator, and Dihderal Two. Go another 50' and uphill a bit to get to Curvilinear.
See the route descriptions for more details.
Classic Climbing Routes at Three Dihedrals
Days w Precip