Website with the history of this tourist attraction west of Denver, built in the late-1950s. For a time, they operated Rio Grande Southern 2-8-0 42, before going belly up. A later revival, called Heritage Square, saw two-foot gauge equipment, and now I'm told, they have 15-inch gauge 5/12 scale stuff operating.

http://www.goldenlandmarks.com/museum/magicmountain/main.htm
ryarger@rypn.org