At end of day and ready for the longest night of all, Canadian Pacific A2m No. 136 rides the turntable at Lambton engine terminal in Toronto after bringing the excursion from Orangeville. Steam exhausts merrily from the turbogenerator behind her tall, straight stack. Built two years before CPR's last spike was driven, 136 has spanned the history of Dominion transcontinental railroading. Photo John A. Rehor