HomeUSACaliforniaJoshua Tree National Park*Joshua Tree Bouldering*Black Rock Canyon Bouldering Ron Hubbard's BoulderL. Ron Hubbard's BoulderLAT,LNG 34.07321, -116.38633CREATED UPDATED Edit MapShareDescription[Edit]No description available. Be the first to contribute!Add description 5 ClimbsComing soon: New Climbs1L. Ron Hubbards Stack of RocksV-easyBouldering2Introduction to Rock ClimbingV-easyBouldering3DianeticsV0+Bouldering4KinematicsV0-Bouldering5L. Ron Hubbard's Stack of Rocks MantleV0Bouldering