HomeUSACaliforniaSan Francisco Bay AreaCastle Rock AreaMuffins, TheGym Rat BoulderGym Rat BoulderLAT,LNG 37.22590, -122.10450CREATED UPDATED Edit MapShareDescription[Edit]No description available. Be the first to contribute!Add description 2 ClimbsComing soon: New Climbs1Gym RatV4Bouldering2Day SleeperV0-Bouldering