Not content with its superb location near the fabled slopes of this revered skiing capital, or having the grandeur of a old-fashioned mountain manor, the 179-key St. Regis Aspen Resort has stepped up its game in an attempt to create the ultimate sybaritic alpine experience. Joining features such as a Remède spa and a signature Italian restaurant, Trecento Quindici Decano, it now has a new altitude concierge who provides guest rooms with oxygen machines.

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