| Type: | Sport, 180 ft (55 m), 2 pitches |
| GPS: | 40.0038, -105.4058 |
| FA: | P1: Ron Olsen, Mike Amato, and Bruno Haché, 5/6/07. P2: Ron Olsen and Bruno Haché, 5/13/07 |
| Page Views: | 7,106 total · 31/month |
| Shared By: | Orphaned on May 6, 2007 |
| Admins: | Leo Paik, John McNamee, Frances Fierst, Monty, Monomaniac, Tyler KC |
5/19/25 Eagle Rock opened. 3/14/25: Bitty Buttress, Blob, & SR reopened.
2/3/25. Bitty Buttress, Blob, Eagle Rock &, Security Risk closed for raptors.
FS (3/27/24): Eagle Rock & Security Risk are now open!
2/1/24: W. McCurry: USFS annual closures in Boulder Canyon as of 2/1/24 - Blob Rock, Bitty Buttress, Eagle Rock, Security Risk.
W. McCurry: 2/10/23 Blob, Bitty Buttress, & Security Risk opened. Eagle Rock is closed - info: fs.usda.gov/detail/arp/news….
W. McCurry, NFS, Arap./Roo. NF: USFS began annual closures in BC 2/1/23. The closures: Eagle, Blob, Bitty Buttress, & Security.
Through 7/31/23, the closures protect golden eagle nesting territory. Happy Hour, Bihedral & Riviera will remain open as long as visitors stay out of the closed areas.
The Boulder Ranger District with BCC monitors nesting progress & informs climbers re: giving eagles space to raise young.
Fed. & state laws prohibit disturbing any nesting bird of prey. Visitors help protect wildlife by respecting closures. Signs are posted at key access pts into the closed areas. Closure info: fs.usda.gov/goto/arp/eagles.
K. Armstrong, Public Affairs Specialist, Nat'l Forest Service: as of 6/8/21: BC areas reopen after unsuccessful nesting.
K. Armstrong, NF Ranger 7/29/20: following a 5 mo. closure to protect nesting eagles, the Roosevelt NF reopened Eagle Rock.
“The BC eagles successfully raised 1 strong & healthy eaglet this year,” wildlife biologist Aurelia DeNasha, USDA FS. “2 chicks hatched initially, only 1 survived to fledge, which isn’t uncommon in birds of prey.”
Visits to the nest did not reveal the exact cause of death of the 2nd chick, but climber cooperation with closures are crucial to the eagles.
“Golden eagle pairs are most susceptible to disturbance when choosing a nest. These closures allow the birds to pick the best site for survival without impact of other factors, such as human presence. Once chosen, nest sites stays closed until the eagles fledge in late July,” said DeNasha.
After the eagles’ site selection was made, unused areas opened in Apr.
The annual nesting closures include popular rock climbing spots at Eagle, Blob, Bitty Buttress, & Security.
Through 7/31/20, the closures protect a long-established golden eagle nesting territory. Happy Hour, Bihedral & Riviera remain open as long as visitors stay out of the closed areas.
It is against federal & state law to disturb any nesting bird of prey. Only employees, volunteers, & wildlife professionals under an agreement with the FS enter nesting areas for monitoring purposes. This is for the integrity of nest & the safety of the eagles, those conducting surveys, & the public. Visitors help protect wildlife by respecting all closures & 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 @ 303-541-2500, or visit local climbing websites or fs.usda.gov/recmain/arp/rec….
4/21/20, Blob Rock, East Blob Rock, Bitty Buttress, & Security Risk are open. Eagle Rock stays closed until 7/31/2020 confirmed with Matt Henry, Rec Prog Mgr, FS.
K. Armstrong, FS Pub Aff, katherine.armstrong@usda.gov, 970-222-7607: 3/20/19, Blob, East Blob, Bitty Buttress, & Security are open. Eagle stays closed to climbing & other activities through 7/31/19.
See - fs.usda.gov/recmain/arp/rec….
Perennial notice:
Eagle, Blob, Bitty Buttress, & Security will close 2/1 - 7/31 for nesting. Depending on updated information, the closure time can be shortened/lengthened.
Each year, BC raptor nesting area closures are in effect starting 2/1 through 7/31 at Eagle, Security, Blob, & Bitty Buttress. The area is monitored & closures are periodically lifted early (due to no active nest, nest site failure, or early fledging). This monitoring program is a partnership with the FS Boulder Ranger District, BCC, & Audubon Society. Check back periodically during times of closure for updates. More info at fs.usda.gov/recarea/arp/rec….
Description
Toe The Line climbs the striking east arete of Tonnere Tower in two pitches. An aesthetic line, with varied moves and good protection. It is comparable to Bihedral Arete in quality, but has a greater variety of moves.
Follow the east face approach on the Tonnere Tower page. Traverse right on the dirt ledge until you're below the east arete. Start at a 2-bolt belay anchor on the ledge. Be careful; this ledge is exposed.
P1: Climb a short dihedral right of a gully to the first bolt, and continue up to the arete. At the second bolt, step left, up, and back right (5.8); going straight up is much harder. Make a delicate step-up move (5.10b) at the third bolt. At the fifth bolt, swing onto the left side of the arete; do not go right. Clip the sixth bolt on the left side of the arete and make an airy high-step move (5.9) back onto the arete. Fun! Make some committing moves (5.9) past the 7th bolt. Continue up to a 2-bolt anchor on the left edge of the arete. 5.10b, 95', 9 bolts.
P2: Straight above the belay is the 5.11 headwall of Generous Donation; this is not the route. Instead, angle up right, past three bolts, around the right side of the headwall (5.10a). Climb a slab and make a fun hand traverse right to an exposed arete (5.8). Climb the arete and a steep headwall above (5.9). Continue more easily to the anchor. 5.10a, 85', 11 bolts.
Descent: Rappel 85' down to the anchor atop the first pitch; angle the rappel a little to the left. From here, rappel 95' to the starting ledge.
Alternate descent: Rappel 95' to the anchor atop the first pitch of Tag Team; this is a straighter line down from the top. Then rappel 65' to the start of Tag Team, and scramble back down to the start of Toe The Line.



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