Ordnance debris photographed at the Southern Pacific rail yard in Roseville, California, 1973, where bombs were staged for shipment overseas to support the Vietnam War. This close-up shows a bomb tail-fin/drag-skirt assembly on the ground beneath a rail car's wheel trucks - a stark reminder of the massive logistical operation of moving munitions by rail across the country during the war, and of Roseville Yard's history as the site of a major 1973 boxcar ordnance explosion. Project: 218336