The Friends of the 457 is a volunteer organization dedicated to the preservation of the Minneapolis & St Louis Railroad steam locomotive in East Park, Mason City Iowa. The M. & St. L engine #457 "Rotary Cannonball" has been on display since 1959, and is open to the public on weekend afternoons, mid-May through October.

Ring the bell, hear the Nathan 6-chime whistle, and enjoy the era of steam!