HomeUSACaliforniaJoshua Tree National ParkHidden Valley AreaReal Hidden ValleyAlps RockFormic Acidhead5.10bBonatti Pillar5.105.10atradFA Todd Gordon and Alan Roberts, January 1988UPDATED BY vietnguyen Tick this climbDescriptionRoutes in Alps Rock1North Face of The Eiger5.10aTrad2Formic Acidhead5.10bTrad3Walker Spur5.10aTrad 4Bonatti Pillar5.10Tr