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It takes a lot of trust to climb with these little guys called "camming devices". They jam into the crack and when pulling on them (falling) they put forces on either side of the crack and stay there (catch your fall). It takes some practice to place them and determine the right rock quality. #nobolts #tradclimbing #rockclimbing #sandiego #rockclimbingsandiego #joshuatree #joshuatreerockclimbing #crackclimbing #climbingclasses #climbingworkshops #teachrockclimbing #rockclimbingschool @shepherdimages