HomeUSAArizonaCentral Arizona**Prescott Area*Prescott Bouldering*Copper Basin / Thumb Butte LoopAcid Rain BouldersAcid Rain BouldersLAT,LNG 34.49894, -112.54458CREATED UPDATED Edit MapShareDescription[Edit]This is a set of hidden boulders in the north section of the Thumb Butte Rd. Copper Basin Rd. intersection. Quality rock and few good problems. Areas is named for the purplish inclusions streaking through some of the faces.0 ClimbsComing soon: New Climbs