Description: Photograph of Santa Fe's "Queen of the Rails" - the "California Limited" train No. 4 eastbound, headed by Engine No. 2928 - a Northern type 4-8-4 locomotive, and a consist of fourteen standard heavyweight cars- crosses the Canyon Diablo Bridge near Winslow, Arizona. Observe this locomotive's automatic-type, elevating smokestack, designed to increase the up-draft, thereby increasing combustion efficiency in the firebox.