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Sentinel Slab Rock Climbing
Routes in Sentinel Slab
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Crack / Bulge T 5.7 5a 15 V+ 13 MVS 4b PG13 |
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Crack 1 T 5.7 5a 15 V+ 13 MVS 4b |
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Dihedral T 5.9+ 5c 17 VI 17 E1 5a PG13 |
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Slab TR 5.7+ 5a 15 V+ 13 MVS 4b |
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| Elevation: | 7,000 ft | 2,134 m |
| GPS: |
40.00247, -105.41003 Google Map · Climbing Area Map |
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| Page Views: | 4,295 total · 35/month | |
| Shared By: | Leo Paik on Sep 28, 2014 | |
| Admins: | Leo Paik, John McNamee, Frances Fierst, Monty, Monomaniac, Tyler KC |
Access Issue: Seasonal Closures 2024 - Bitty Buttress, Blob (Eagle Rock & Security Risk now open!)
Details
FS (3/27/24): Eagle Rock & Security Risk are now open!
2/1/24: W. McCurry: to protect nesting golden eagles, U.S. FS annual area closures in Boulder Canyon beginning 2/1/24 - Blob Rock, Bitty Buttress, Eagle Rock, Security Risk.
USFS lifted closures 7/26/23.
From W. McCurry: 2/10/23 Blob, Bitty Buttress, & Security Risk opened. Eagle Rock stayed closed - info: fs.usda.gov/detail/arp/news….
W. McCurry, NFS, Arap./Roo. NF: USFS began annual area closures in BC 2/1/23. The closures were Eagle, Blob, Bitty Buttress, & Security.
Through 7/31/23, the closures protect a long-established 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 about giving the 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 has 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.
Effective 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.
The Boulder Ranger District partners with BCC & AF to monitor nesting progress and to inform climbers about the importance of giving the eagles space to raise their young.
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….
As of 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.
From 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.
The Boulder Ranger District partners with BCC & AF to monitor nesting progress & to inform climbers.
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…
2/1/24: W. McCurry: to protect nesting golden eagles, U.S. FS annual area closures in Boulder Canyon beginning 2/1/24 - Blob Rock, Bitty Buttress, Eagle Rock, Security Risk.
USFS lifted closures 7/26/23.
From W. McCurry: 2/10/23 Blob, Bitty Buttress, & Security Risk opened. Eagle Rock stayed closed - info: fs.usda.gov/detail/arp/news….
W. McCurry, NFS, Arap./Roo. NF: USFS began annual area closures in BC 2/1/23. The closures were Eagle, Blob, Bitty Buttress, & Security.
Through 7/31/23, the closures protect a long-established 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 about giving the 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 has 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.
Effective 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.
The Boulder Ranger District partners with BCC & AF to monitor nesting progress and to inform climbers about the importance of giving the eagles space to raise their young.
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….
As of 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.
From 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.
The Boulder Ranger District partners with BCC & AF to monitor nesting progress & to inform climbers.
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
This may be one of the more obscure, close to the road crags in Boulder Canyon. It is really only for the explorer types who don't mind some scratches and mud.
The west-facing crag is clearly visible when going downcanyon. The slab looks inviting to the curious. It lies just downhill from Bell Buttress and the Practice Rock/Bowling Alley areas.
Rossiter's 1999 Boulder Canyon guidebook mentions the crag on p. 171. He mentions several routes having been done but only one, Inveigle, 8+, having been documented.
There are 3 sections of the small but wider crag. The left side has a series of cracks surmounting a bulge at mid-height. The middle section has at least two routes, including the documented route. The right side has at least 4 routes with a bulgy start to the routes.
The base of the crag stays in the shade, while the upper crag gets bathed in afternoon sunshine.
There is a walkoff easier than Cob Rock's descent off the right side.
FWIW, the GPS feature here is probably not accurate, as the satellite view is all shaded, making it impossible to identify the crag.
L->R:
A. Crack 1, 7, 1p, gear.
B. Crack 2.
C. Crack 3.
D?
E? Inveigle, 8+.
F. Dihedral, 9+ PG-13, 1p, gear.
G. Slab, 7+, 1p, TR.
H. Cracks / Bulge, 7 PG-13, 2p, 115', gear.
Getting There
Its approach reflects a distinct lack of climber attention to the crag. It is probably best to wait for the creek levels to drop, although one might be able to access it from the downstream Bell Buttress tyrolean with a bit of a scramble.
From the Practice Rock pullout, walk downcanyon perhaps 150 yards to a point across from the vegetated gully. Scramble down to the creek, wade, change into scrambling shoes, thrash upwards in the wet gully, and deposit yourself below the section of the slab you wish to explore.
From the Practice Rock pullout, walk downcanyon perhaps 150 yards to a point across from the vegetated gully. Scramble down to the creek, wade, change into scrambling shoes, thrash upwards in the wet gully, and deposit yourself below the section of the slab you wish to explore.
Sun Angles Details:
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