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J-Crack Slab Area

Routes Sorted
L to R R to L Alpha
Adventures of B-Dog, The T 
Alien Algorithm T,S 
Campground, The T 
Cave Exit, The T 
Cavity, The T 
Endless Crack T 
Fascist Drill in the West T,S 
Femp T 
Fender T 
Happy Camper T 
J-Crack T 
KOAlien T,S 
Loose Ends T 
Mission Accomplished T,TR 
Mission Impossible T 
Monkey on a String S 
Pear Buttress T 
Pizza Face T 
Stretch Marks T 
Thindependence T 
Thinstone T 
Turn the Page T 
Unnamed 5.9 TR TR 
Visual Aids T 
Weekend Warrior S,TR 
Unsorted Routes:

J-Crack Slab Area Rock Climbing 

Photos:  Recent | Best | Popular
Elevation: 8,458'
Location: 40.40556, -105.53398 View Map  Incorrect?
Page Views: 28,652
Administrators: Leo Paik, John McNamee, Frances Fierst, Monomaniac, Monty, Kristine Hoffman (sitewide)
Submitted By: Jonathan Siegrist on May 12, 2009

63° | 38°

69° | 43°

67° | 43°

63° | 39°

64° | 41°

56° | 33°
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BETA PHOTO: The Book as divided on Mountain Project.

Season raptor closures MORE INFO >>>


This is a sub-section of the Book, including routes on the climbers right of the Book and surrounding areas, including some routes featured on large boulders below the J-Crack Slab. The title route, J-Crack, is perhaps one of the most popular and classic climbs on all of Lumpy Ridge. This area also features such amazing climbs as Thindependence (5.10c), Loose Ends (5.9) and Pear Buttress (5.8). The final route included in this area to the climbers left would be Monkey on a String (5.12). See the Pages Wall Area for routes further left on the Book.

Getting There 

Hike as you would to the Book. Break right towards the base of the cliff. J-Crack looks just as it sounds- the area surrounding this climb is the J-Crack Slab. Several climbs also exist on large boulders below that include their own specific directions.

Climbing Season

Weather station 1.8 miles from here

25 Total Climbing Routes

['4 Stars',4],['3 Stars',9],['2 Stars',9],['1 Star',2],['Bomb',0]

Classic Climbing Routes in J-Crack Slab Area

Mountain Project's determination of the classic, most popular, highest rated climbing routes for J-Crack Slab Area:
The Cave Exit   5.7+ 5a 15 V+ 13 MVS 4b     Trad, 1 pitch   
The Campground   5.7+ 5a 15 V+ 13 MVS 4b     Trad, 1 pitch, 150'   
Pear Buttress   5.8 5b 16 VI- 15 HVS 4c     Trad, 5 pitches   
Fender   5.8 5b 16 VI- 15 HVS 4c     Trad, 2 pitches, 400'   
Loose Ends   5.9 5c 17 VI 17 HVS 5a     Trad, 5 pitches   
Endless Crack   5.9 5c 17 VI 17 HVS 5a     Trad, 4 pitches, 500'   
Thinstone   5.9 5c 17 VI 17 HVS 5a     Trad   
J-Crack   5.9+ 5c 17 VI 17 E1 5a     Trad, 4 pitches   
Visual Aids   5.10b 6a+ 19 VII- 19 E2 5b     Trad, 4 pitches   
Thindependence   5.10c 6b 20 VII 20 E2 5b     Trad, 1 pitch   
Stretch Marks   5.11a 6c 22 VII+ 22 E3 5c     Trad, 1 pitch   
The Adventures of B-Dog   5.12a 7a+ 25 VIII+ 25 E5 6a     Trad, 1 pitch, 110'   
Monkey on a String   5.12b 7b 26 VIII+ 26 E5 6b     Sport, 60'   
Browse More Rock Climbing Classics in J-Crack Slab Area

Featured Route For J-Crack Slab Area
Rock Climbing Photo: Chuck Graves places gear after the crux.

Thindependence 5.10c 6b 20 VII 20 E2 5b  CO : Lumpy Ridge : ... : J-Crack Slab Area
This is a one pitch route that begins from the top of the flake that marks the start of Pear Buttress. It can thus be used as a start to Loose Ends, Pear Buttress, or Visual Aids. From the start of Pear Buttress, scramble up around to the left to get up to the top of the flake, or start from just below the top on the left. The route begins from the middle of the flake and follows two very thin but good cracks up to the sloping ledg...[more]   Browse More Classics in CO

Photos of J-Crack Slab Area Slideshow Add Photo
Rock Climbing Photo: Central Book area.
BETA PHOTO: Central Book area.

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