World’s largest steam locomotive returns to the rails for special holiday tour
Popular Science · 7 Oct 2026

World’s largest steam locomotive returns to the rails for special holiday tour

Published Oct 7, 2026 11:35 AM EDT For the first time since 2019, Union Pacific’s Living Legend No. 844 will be hitting the rails with Big Boy No. 4014. These historic locomotives will be together for a special holiday tour this November. On November 21, the pair of steam locomotives will run during


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