It's Steamy Sunday here on the Blog! Today's image goes back several years to a visit I made to the Colorado Railroad Museum. I need to get back there as they have changed things quite a bit. Anyway, this is Chicago, Burlington and Quincy locomotive 5629. It was built in 1940 and was used in heavy freight and passenger service until the early 1960s. It is a 4-8-4 wheel arrangement, also known as a Northern, and is the heaviest steam locomotive at the museum. It was moved to the museum in 1963.