Castle Rock Bouldering: How to Mantle

 
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In the hills just south of San Jose are a cluster of sandstone boulders. When the winter days are cold, the friction on these rounded Font like blobs becomes amazing. For those looking to do some weekend bouldering near the bay area, Castle Rock is a great option. One of the most important skills required at Castle Rock is the mantle, or pressing out the top of a boulder. The rounded rocks don’t have big jugs at the top, instead they have precarious mantles.

A single hueco followed by a series of bad slopers below the Magoo Boulders was a long term John “Yabo” Yabolonski problem until a few years ago when Santa Cruz local, Chris Sharma dispatched the first ascent of “Ecoterrorist” (V10/11). Here’s some footage of Scott Chandler hiking the problem. Watch the way he tops out the difficult problem.