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Sentinel Slab

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Crack / Bulge T 
Dihedral T 
Slab TR 

Sentinel Slab Rock Climbing 

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Elevation: 7,000'
Location: 40.00247, -105.41003 View Map  Incorrect?
Page Views: 953
Administrators: Leo Paik, John McNamee, Frances Fierst, Monty, Monomaniac, Kristine Hoffman (sitewide)
Submitted By: Leo Paik on Sep 28, 2014


65° | 31°

44° | 32°

56° | 37°

57° | 33°

49° | 33°
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  • 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.


    A. Crack 1.
    B. Crack 2.
    C. Crack 3.

    E? Inveigle, 8+.

    F. Dihedral, 9+, 1p, gear.
    G. Slab, 7+, 1p, TR.
    H. Cracks / Bulge, 7, 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.

    Climbing Season

    Weather station 5.7 miles from here

    3 Total Climbing Routes

    ['4 Stars',0],['3 Stars',0],['2 Stars',2],['1 Star',1],['Bomb',0]

    Featured Route For Sentinel Slab
    Rock Climbing Photo: The slab.

    Slab 5.7+ 5a 15 V+ 13 MVS 4b  Colorado : Boulder Canyon : Sentinel Slab
    This is a nice toprope slab connecting features for a quick romp. The start can be gained more easily from the right as for Cracks/Bulge or via the harder and steeper start of Dihedral.Once on the slab, more or less follow a rib angling slightly right toward a pair of trees. The finish can be easier on the left or directly below the bigger tree on fun jugs....[more]   Browse More Classics in Colorado

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