Abundant snowfall, moderate weather and inviting terrain make the High Sierra the finest range in the world for backcountry skiing. However, it can be a very harsh environment. Heavy snowfalls, avalanches and the inherent hazards of skiing in very remote locations are a constant threat. You must have a thorough understanding and knowledge of routefinding, navigation, winter camping, basic mountaineering skills, first aid and avalanche hazard determination. Early November to mid-July.
Conditions are generally safest in the spring.
The nearest airports to the region are in Fresno, Calif. for the west side, and Reno, Nev. for the east side. The best way to reach the areas for ski touring is by car, although there is bus service to the mountains. The only road that crosses the section of the Sierra covered by the ski tours is the Tioga Pass Road in Yosemite National Park , and it is closed from early November to mid-May. State Highway 99 on the west and U.S. Highway 395 on the east. Be sure factor in the extra driving time necessary to access Highway 99 or 395 from your starting point.