The tallest boulder at the Nut Tree boulders. Most boulderers never make it to this boulder. It's the tallest and furthest form any point. Several really classic problems exist form V0 to V5+
Getting There
Start at the Hillcrest gate and walk up to the saddle boulders, take a right and head up hill to the Hidden boulder. The mother boulder can be found just up hill obscured by a giant oak tree. Approach takes about 10 minutes for a fit person.