San Francisco Bay Area Bouldering

The definitive guide to bouldering in the San Francisco Bay Area by climbing author and photographer Jim Thornburg. This comprehensive guidebook covers the best bouldering spots across the region — from the sandstone of Castle Rock to the granite of the Sierra foothills and everything in between.

• Detailed topos and problem descriptions for hundreds of problems
• Difficulty ratings from beginner to elite
• Access information, parking, and approach directions
• Full-color photography throughout
• Covers all major Bay Area bouldering areas

Whether you're a local looking to discover new spots or a visiting climber exploring the Bay Area's unique and varied bouldering, this guide is your essential companion.