There's only one way to make this journey--by narrow gauge railroad, pulled by a vintage steam locomotive. This is a truly iconic experience in the southwest of the state, and one of the ways to feel the full grandeur of the San Juan Mountains. You board the train in the morning at the depot in Durango, just as passengers have been doing since 1882! The trip takes about 3.5 hours and you can either ride the same train back, or opt for the one-hour bus ride down Highway 550. There are a number of cars and classes to choose from, from standard coach to the Knight Sky, an all-glass carriage in First Class that allows views up the stunning canyons (and not just their passing walls). Tickets start at $85.