Two Santa Fe F45s and an F7B lead Amtrak 4, the eastbound Southwest Chief, as it pauses at the Flagstaff AZ station on a chilly March 6, 1973, morning.
Two Santa Fe F45s and an F7B lead Amtrak 4, the eastbound Southwest Chief, as it pauses at the Flagstaff AZ station on a chilly March 6, 1973, morning.