Passengers learn about the The Cumbres & Toltec Scenic Railroad from a railroad employee during a stop at Osier, Colorado. The train is pulled by a steam locomotive on the 64 mile run between Chama, New Mexico and Antonito, Colorado. The railroad is the highest and longest narrow gauge steam railroad in the United States with a track length of 64 miles. The train traverses the border between Colorado and New Mexico, crossing back and forth between the two states 11 times. The narrow gauge track is 3 feet wide. It runs over 10,015 ft (3,053 m) Cumbres Pass.