petrifiedforest "The ___," Sherwood play Arizona tourist mecca Source of much hard wood? Sherwood's terror firma Hard-wood center Frightened part of Arizona Colorado Plateau attraction Arizona tourist stop Arizona attraction Result of a volcanic eruption, maybe Source of hardwood? "The ___," Bogart film A hardened Arden? Ariz. attraction Sherwood play (with "The") Frustrating scene for a pyromaniac in Ariz.?