Denver & Rio Grande No. 168 is a T-12 class 4-6-0 "Ten-Wheeler" type narrow gauge steam locomotive built by the Baldwin Locomotive Works in 1883 for the Denver & Rio Grande Railroad (D&RG), later known as the Denver & Rio Grande Western Railroad (D&RGW). It was restored to operating condition in Antonito, CO for excursion service in October 2019 after sitting on static display in a Colorado Springs city park since 1938. It is still owned by the city of Colorado Springs, CO, but is now in operation on special charters and excursions at the Cumbres & Toltec Scenic Railroad (C&TS) between Antonito, CO and Chama, NM on loan, although it mostly operates out of Antonito.
In 2021, it participated in the railroad's Roundup of the Victorian Iron Horses event between August 21st and 29th alongside Denver & Rio Grande Western 2-8-0 No. 315, which was renumbered and relettered as D&RG No. 425 for the event, and visiting locomotives Eureka & Palisade 4-4-0 No. 4, nicknamed Eureka, Carson & Tahoe Lumber & Fluming Company 2-6-0 No. 1, nicknamed Glenbrook, and Rio Grande Southern 4-6-0 No. 20.