HomeUSACaliforniaJoshua Tree National ParkWonderland of RocksWonderland NorthAtom Smasher AreaDisappointment DomeRoller Coaster5.85.8tradFA Kevin Powell and Alan Roberts, 1987.UPDATED BY vietnguyen Tick this climbDescriptionRoutes in Disappointment Dome1Letdown, The5.8Trad 2Roller Coaster5.8Trad