Follow along as we chase Union Pacific "Big Boy" #4014, the world's largest operating steam locomotive, as it makes a rare visit to the Missouri Ozarks. See the huge crowds coming together to enjoy this unique piece of American railroad history as it passes through De Soto, Bismarck, and the Arcadia Valley. Hear the mesmerizing sounds of this massive working locomotive and its haunting whistle!
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Our video on the volcanic history of the area: • Exploring the Precambrian igneous geology ...