Featured Image: Peter Morning, Mammoth Mountain
There is no sadder day of the ski season than the day the lifts at your local resort stop spinning for the winter. Gone are the days of lift-served, gravity-fueled adrenaline until next winter. That is, unless you trade your skis out for a mountain bike every spring.
Of course, there is always the option of pedaling for your downhill thrills, much like backcountry skiing, but there's something to be said about throwing your bike on the same lift you ride with your skis every December through April. While backcountry bike trails can be a guessing game about whether the trail goes because of downed trees, rain ruts, and other erosion issues, bike parks are well-groomed and maintained from opening day to the last day of the season thanks to the operations teams at our beloved ski resorts.
While many of the projected opening dates in this article are dependent on weather and other operational factors, we've compiled a complete list of bike park opening dates for 2026 across the Mountain West below. Whether you're just seeking out flow state or you're looking to hit the biggest jumps in the park, these ski resorts offer year-round downhill thrills. Pack your bike pads and full-face helmet, it's mountain bike season, baby!
Photo: Peter Morning, Mammoth Mountain
Photo: Peter Morning, Mammoth Mountain
California
Mammoth Mountain: Open daily 9 am - 6 pm
Northstar Resort: Friday, June 12
Big Bear Mountain Resort: Snow Summit open daily starting Friday, June 5, 10 am - 4 pm (Monday through Friday) and 9 am - 4 pm (Saturdays and Sundays)
Colorado
Aspen Snowmass: Sunday, June 21
Beaver Creek: Friday, June 19
Breckenridge: Friday, June 12
Copper Mountain: Saturday, June 21
Crested Butte: Saturday, June 13
Keystone: Thursday, June 25
Steamboat: Friday: June 5
Telluride: Closed for Summer 2026 (cross-country trails are open)
Winter Park: Saturday, May 30 for weekends only until June 19
Idaho
Sun Valley: Wednesday, July 1
Photo: Courtesy of Whistler Blackcomb
Photo: Courtesy of Whistler Blackcomb
Montana
Big Sky: Saturday, June 13
Whitefish: Open for weekends only until June 13
Utah
Deer Valley: Friday, June 19
Park City: Saturday, June 13
Solitude: Open daily 10 am - 6 pm
Wyoming
Grand Targhee: Friday, June 12
Jackson Hole: Saturday, June 13
Photo: Courtesy of Whistler Blackcomb
Photo: Courtesy of Whistler Blackcomb
Canada
Big White: Wednesday, July 1
Fernie: Thursday, June 25
Red Mountain: Saturday, June 20
Revelstoke: Friday, June 5 (Lower Mountain)
Sun Peaks: Saturday, June 13
Whistler Blackcomb: Open daily 10 am - 5 pm (Whistler Village Gondola)













