Grand Canyon Railway 4960 is a class "O-1a" 2-8-2 "Mikado" type steam locomotive built by Baldwin Locomotive Works in Philadelphia, Pennsylvania in 1923 for the Chicago, Burlington and Quincy Railroad. Its primary use was freight service until 1957. It was spared from scrapping by the CB&Q, and was used in their steam excursion program alongside 4-8-4 class O-5b No. 5632, until the program was terminated in 1966. It was donated to the Circus World Museum, who then donated it to the Mid-Continent Railway Museum for static display. In the early 1980s, it was operated again by the Bristol and North Western Railroad before it was put into storage. Today, it is owned by the Grand Canyon Railway, pulling passenger trains between Williams, Arizona and the Grand Canyon National Park alongside form