???Outside is the best place to be,??? agrees Fermin Estrada, a 71-year-old native of the region who began working as an attendant in the first-class cars after retiring from the town???s cement plant (still Clarkdale???s sole big industry) in 2002. ???That???s where you do your best viewing.??? While Estrada hosts guests in the train???s luxury caboose, he loves it when the party moves outside to