During the holiday season this year, Colorado Railroad Museum in Golden, Colorado, is operating the popular “Polar Express.” Powering the special trains is Rio Grande 2-8-2 K-37 No. 491 that was restored to operating condition earlier this year. In this view on the downgrade portion of the loop, the Mikado is approaching the main entrance grade crossing on November 21, 2014. Lighting courtesy of Night Stalker Photo Works, LLC.