A BNSF Mi-Jack crane is about finished unloading a stack train at the intermodal facility in Denver, Colorado, just as BNSF 5640 (AC4400CW) brings in a fresh set of cars.
Western Pacific 2-8-8-2 number 256 leads seventy one cars eastbound at Oroville California in 1935. Otto's speed estimate for this train was 30 MPH. Otto Conrad Perry photo, from my collection.