Don't put the skis away just yet. High-elevation glaciers are opening up across North America and Europe and the heavy late snowfall in the western United States means a few resorts are still turning their lifts. Here's our roundup of the best places to ski this summer.  

Timberline Lodge, Oregon

Open daily until Sept. 5 (7 a.m. to 1:30 p.m.) Timberline Lodge grooms several lanes across Palmer Snowfield located on the south face of Mt. Hood. Used primarily for summer race camps, the above-treeline terrain always includes one lane for public use. Tickets are $54 and a terrain park is also maintained on Otto Lang.

Whistler Blackcomb, British Columbia

Get in an early-morning mountain bike ride and then head up to Horstman Glacier, a popular summertime destination for skiers and boarders wanting to extend their winter season. Accessed by riding three separate chairlifts, the glacier includes terrain park features, mogul fields and groomed runs. Open from 12-3 p.m. tickets cost $55 and lunch can be bought at Horstman Hut.

Mammoth Mountain, California

Perfect for a multi-sport Fourth of July weekend, Mammoth Mountain is open for mountain biking, golf and skiing. The Broadway Express, Facelift and Chair 23 are all running providing access to one terrain park and a fistful of groomed runs. The highlight of the weekend however, is Monday's Last Run of the Season party at the Yodler. Lift tickets are $69 or $99 for lift-accessed mountain biking, golf and of course skiing.

Arapahoe Basin, Colorado

Starting July 1, A-Basin will have two lifts running from 8:30 a.m. - 2:30 p.m. providing access to intermediate and advanced terrain. The late season snow has provided skiers in Colorado with excellent summertime conditions and A-Basin has stayed open to take advantage of it. Adult tickets are $39 and the 6th Alley Bar will be open until 4 p.m.