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? Shuttles to and from Aspen Camping at Up in the Sky Other articles in this section How do I get to the festival? Where is Up in the Sky located? Shuttles to and from Aspen What hotel and accommodation options are available? Camping at Up in the Sky