Relatively unchanged from an era of long ago, Coahuila and Zacatecas Railroad's train No. 2, northbound, headed by Engine No. 6, a Pacific type 4-6-2 coal-fired steam locomotive with a consist of four cars, is backing into the depot at Concepcion del Oro, in the state of Zacatecas. The train has reversed direction on the wye at this southern terminal in the days of the great copper mines owned and operated by the Mazapol Copper Company, Ltd. Soon it will depart on its run over the narrow gauge rails to the northern terminus of the line in Saltillo, capitol city of the state of Coahuila, Mexico in February 1948.