1950 census indicates population growth in California. Golden Gate bridge. Aerial footage of San Francisco city hall. University of California UC Berkeley campus clock tower. Various shots of trains on railroad tracks. Conductor leans out window of train car while smoking corn cob pipe. POV from inside train car as another train passes on track. High angle of cattle processing facility. Livestock moves from Union Pacific trains to corrals. Men herd cows out of train cars. WS of train yard. ECU of train wheels, gears, axles and piston. High speed Union Pacific trains. Great shots of steam trains, trains with smokestacks, railroad.