Where is the festival entrance? Last Updated: July 09, 2026 20:15 The festival entrance is located at the base of Buttermilk Mountain in Aspen, Colorado. Find festival hours here. Related articles Where is Up in the Sky located? How do I get to the festival? What are the dates and hours of Up in the Sky? Camping at Up in the Sky What hotel and accommodation options are available? Other articles in this section Shuttles to and from Aspen Where is Up in the Sky located? Camping at Up in the Sky How do I get to the festival? What hotel and accommodation options are available?