Ski Areas in Idaho Idaho is a region of United States offering snow sports in 8 American Ski Resorts, including Beaver Mountain, Bogus Basin and Brundage Mountain. Snow Forecasts for Idaho Snow Forecasts for Ski Resorts in Idaho Ski Resort Forecast 48HrThuFriSatSunMonTueWed 7Day Beaver Mountain1cm- 3cm1in Bogus Basin-38cm15in Brundage Mountain-63cm25in Idaho Ski Resorts Ski Resorts in Idaho Ski Resort Pistes Top Beginn. Interm. Experts Beaver Mountain-2,680m8,793ft Bogus Basin-2,320m7,612ft Brundage Mountain-2,330m7,644ft Christmas Mountain-381m1,250ft--- Grand Targhee-3,110m10,203ft Soda Springs-2,241m7,352ft--- Soldier Mountain-2,195m7,201ft--- Sun Valley-2,790m9,154ft