Looks like the Colorado Historical Society may be settling on former IRCA 2-8-0 111 for the Georgetown Loop. This is the narrow gauge engine that sat for many years at the defunct Sundown & Southern private RR east of Ft. Lupton, Colorado and is now at Breckenridge, Colorado. Much discussion begins at the link below:

http://www.ngdiscussion.net/cgi-bin/NGD ... read=52909