You don't understand Vail until you ski over the back of it. The front mountain is excellent — long, civilised, immaculately groomed — but it's a curtain. Drop over the ridge and the Back Bowls open in front of you: seven treeless alpine basins running six miles end to end, more than three thousand acres of open snow with nothing between you and the far side of the Rockies.

That scale isn't an accident. In 1957, a 10th Mountain Division veteran named Pete Siebert hiked seven hours to the summit with a local rancher, Earl Eaton, stood on Ptarmigan Ridge, and looked down at the backside for the first time. The resort opened in 1962. Today Vail covers 5,289 acres — the third-largest single mountain in the United States — and the bowls remain its beating heart.

The village is the other half of the story. Siebert had spent time in the Alps, and he built Vail to feel like the Tyrol — narrow streets, steep gabled roofs pitched to shed the snow, the warm light of a European mountain town at dusk. It is a piece of theatre, and it works. After a day in the bowls, walking those streets feels exactly right.

Ask a serious skier why they return to Vail and they rarely mention the lifts or the lodges. They talk about a powder morning in the bowls in January, the whole expanse untracked, the cold thin air, and the rare sense — almost gone elsewhere — of having more mountain in front of you than you could ski in a week.