Aspen Mountain | Opening Day Date: November 26, 2026 Add to Calendar Google CalendarMicrosoft OutlookApple CalendarDownload Time: All Day Venue: Aspen Mountain Location: Aspen. More info Calendar: Aspen | Calendar of Events, Snowmass Calendar of Events Aspen Mountain Opening Day Start the ski season at Aspen Mountain on November 26, 2026. Learn More about skiing in Aspen, Colorado Related