The "Treehouse Boulder" can be found with-in sight of the Highball Boulder. If walking down the hill past "Highball" enter into the open field/meadow and head left towards the "No Opposition" boulder. When halfway through the meadow, turn left again. The boulder is on the right and is obvious due to the giant tree that has fallen on top of it. Timber starts on opposing side-pulls and climbs to the peak of the uphill side of the boulder. Top out by sliding under the tree.