Atchison, Topeka and Santa Fe Railway 5000, Historic locomotive in Amarillo, United States.

The Atchison, Topeka and Santa Fe Railway 5000 is a steam locomotive on display in Amarillo within a fenced area near downtown. It features a large boiler, driving wheels, and connected mechanisms that once converted steam pressure into motion.

Built by Baldwin Locomotive Works in October 1930 for 133,900 USD, No. 5000 was tested between Clovis and Vaughn, New Mexico, hauling 15% more tonnage in 9% less time than the 3800 class. It was retired in November 1953 after over 2.8 million km and donated to Amarillo in April 1957.

Locomotive 5000 was nicknamed the "Madame Queen" for being, for years, the largest, heaviest and most powerful single-frame locomotive on the Santa Fe. It was the prototype for the 5001 class of 1938 and the 5011 class of 1944. The Railroad Artifact Preservation Society maintains it at 500 SE 2nd Avenue.

The locomotive stands behind a fence near downtown Amarillo where you can view it from outside the perimeter. Daytime visits work best for seeing all the mechanical details and getting good views from different angles.

What made this locomotive stand out was its efficiency in operation: it could haul heavier loads while burning less fuel compared to earlier models of its kind. This technical advancement made it valuable for long-distance rail operations across the country.