The Eastern Sierra, California
The best backcountry skiing descents in the US, period. From north of Lee Vining all the way south about 130 miles to Lone Pine, the number of huge lines and epic descents within sight of Highway 395 is staggering -- hundreds of classic chutes and summits. Come prepared for huge days that start in sagebrush desert and climb to alpine summits 6,000-8,000 feet higher. Time it right (late April) and reap tremendous spring corn conditions that rival the best powder anywhere.
Todd skinning up from the desert, Mt. Tom
Backcountry Skiing California's High Sierra by John Moynier
Most comprehensive guide to High Sierra backcountry skiing. Covers range from Matterhorn Peak north of Lee Vining to Mt. Langley south of Lone Pine. Moynier's descriptions of 6,000 ft vertical climbs in "a few hours" will give you a laugh.
Backcountry Skiing California's High Sierra by Paul Richins Jr.
Great summary of the must-do backcountry ski tours in all of California. Good for culling down the options to the best of the best.
Eastern Sierra Avalanche Center