Milwaukee Road 261 is a 4-8-4 "Northern" type steam locomotive built by the American Locomotive Company, (ALCO), in Schenectady, New York in July 1944 for the Chicago, Milwaukee, St. Paul & Pacific Railroad. It was used for heavy mainline freight work until being retired by the railroad in 1954. Instead of being cut up for scrap, the 261 was preserved and donated to the National Railroad Museum in Green Bay, Wisconsin in 1958. Today the locomotive is owned, operated, and maintained by Minneapolis-based nonprofit organization Friends of the 261, which runs seasonal excursion trains using the 261. The steam engine, restored in 1993, has logged more than under its own power since that time.