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The Mountains of Magic Kingdom - 24 Facts & Secrets

18 - The ride operates with 6 trains.

There are actually six total trains that make up the Big Thunder Mountain Railroad family. Their names are: I.M. Brave, I.B. Hearty, I.M. Fearless., U.B. Bold, U.R. Courageous and U.R. Daring.  What fun names to set the expectation of what is about to occur once your train leaves the station.