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Jack's Fortress

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Frontal Assault T 
Sewer, The T 

Jack's Fortress Rock Climbing 

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Administrators: Jesse Zacher, Jared LaVacque, Bradley Mark Edwards, Nick Reecy, Leo Paik, John McNamee, Frances Fierst, Monty, Monomaniac, Kristine Hoffman (sitewide)
Submitted By: Alex Garhart on May 9, 2009


54° | 34°

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61° | 41°

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61° | 44°
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The prow and blank east face of Jack's.

Climbing is prohibited until further notice.


Jack's Fortress is a detached fin of granite that offers excellent rock quality and great exposure.

Getting There 

It is located ~ 1/2 mile west of the Sun Tower formation on the north side of CO Highway 141. Approach is 15-20 minutes across private land. Talk to land owner if you wish to access these climbs.

Climbing Season

For the Main Canyon: Unaweep Granite area.

Weather station 17.3 miles from here

2 Total Climbing Routes

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

Featured Route For Jack's Fortress
Rock Climbing Photo: The route.

Frontal Assault 5.9- 5c 17 VI 16 HVS 4c  Colorado : Grand Junction Area : ... : Jack's Fortress
Climb fingers and stem in a left facing corner to a ledge where a flake can be reached. Climb hands and fingers up the flake with nice exposure to a small roof. Pass the roof on the left via fingers/hands to a small ledge (optional belay). Move up and right via hands in a crack that cuts through the entire fin. Surmount the pillar and move left to a couple of airy hand jams to the summit (5.9-, 115 ft). ...[more]   Browse More Classics in Colorado

Photos of Jack's Fortress Slideshow Add Photo
Rock Climbing Photo: The west face of Jack's.
BETA PHOTO: The west face of Jack's.

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