168 is a class "T-12" 4-6-0 “Ten Wheeler” type narrow-gauge steam locomotive.

The large drivers made it suitable for relatively fast passenger service.

Another shows it in Montrose, Colorado, west of Gunnison, at the head of a special train taking President William Howard Taft to the opening of the Gunnison Tunnel which, at the time, was the longest irrigation tunnel in the world.

It was added to the National Register of Historic Places as Rio Grande Engine No.

The city has arranged with the Cumbres and Toltec Scenic Railroad (C&TSRR) to have the engine restored to working order.