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Routes in Isosceles Boulder

Isosceles V3 6A R
Songs About Singing V1 5
Type: Boulder, 15 ft
FA: Me, Spring 2007
Page Views: 812 total, 8/month
Shared By: Skyeler Congdon on Aug 20, 2009
Admins: Jesse Zacher, Jared LaVacque, Bradley Mark Edwards, Nick Reecy, Leo Paik, John McNamee, Frances Fierst, Monty, Monomaniac

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This is the Shacks' version of Atari at the Happy's!! Looks classic, climbs okay. Isosceles ascends the triangular-looking south face that is obvious from the parking lot.

Start by liebacking and heelhooking the right arete until it is possible to reach out left and sidepull the left arete. Do some cool double sidepulls until a committing throw to the apex (good). Mantle straight up over the south face (don't escape out right).


This is on the Ridge, look for big, triangle-shaped face.


A very GOOD spotter, if you fall you risk bouncing off the ledge and falling even further down left into talus, especially if your heel hook blows.


Had a hard time finding start holds for hands even with the lieback. Aug 14, 2013
Dave C
Homeless, CO
Dave C   Homeless, CO
The left arete gets softer towards the top, be careful in your hand placement. Sep 11, 2010