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Backcountry Skiing, Snow & Ice Climbing, Rock Climbing, Avalanche & WFA/WFR courses Truckee ~ Tahoe and Mt Shasta and Mt Whitney

Buttermilk Camp Moved To Tioga Pass!!~ 2 Days
April 19-20, 2014

Intro to Snow Climbing ~ All Gear included at Donner Pass
April 19th or 26th, 2014

Wilderness First Aid (WFA) or WFR Refresher
May 17-18, 2014

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Featured Programs

Who we are & what we do Upcoming Programs

Bela G. Vadasz
Technical Director
IFMGA Internationally Licensed
Mountain Guide

Mimi Vadasz
Adminstrative Director
AMGA Certified
Ski Mountaineering Guide

Member School

Director, Bela G. Vadasz
receives the AMGA
Lifetime Achievement Award

ASI was established in 1979 by Bela G. Vadasz and Mimi Maki-Vadasz. We are America's original all-terrain backcountry ski mountaineering, avalanche education and rock climbing courses and instruction and alpine climbing program based Truckee and in the Sierra Nevada, visiting the greatest ranges of the world. With experiences among the highest mountains in over 15 different countries, ASI's instructors and AMGA and IFMGA certified guides are also among the best and most experienced outdoor educators in America. We are the best in Tahoe.

Spring - Haute RouteEnjoy high route ski traverses and ski mountaineering to destinations including Mt. Shasta, the Sierra High Route, the European Haute Route and ski descents of the Tioga Pass area, the Palisades and much more.

Summer - Bear Creek Spire, Northeast RidgeOffering Rock Climbing Instruction and Courses in Truckee, CA at Donner Pass & Donner Summit and guided rock climbs at Lover's Leap, climbs of Mt. Shasta and many High Sierra peaks, including North Palisade, Bear Creek Spire, The East Face, East Buttress and the Mountaineer's Route on Mt. Whitney.

Fall - Clyde Couloir, North PalisadeWe guide great Sierra ice climbs such as Mt. Dana, the Dana Couloir, the U-notch and the V-notch on North Palisade and Mt. Sill. We visit many of the great ranges of the world including Mexico's Volcanoes, Mt. Blanc, the Matterhorn and the Himalaya.

Winter - Backcountry Adventure CenterWe specialize in AIARE Level 1, 2 & 3 Avalanche Courses, Backcountry Skiing, including telemark, randonnée, as well as splitboarding and winter mountaineering in the immediate Truckee/Lake Tahoe area along with ice climbing on Donner Pass as well as the famous Lee Vining Canyon. Also check out our Backcountry Adventure Center at Sugar Bowl Ski Resort. We offer daily sidecountry and backcountry tours with ski gear included.

Wilderness First Aid or WFR Refresher
May 17-18, 2014

The Buttermilk Camp, Moved to Tioga Pass!!
April 19-20, 2014

Shasta Steeps
April 26-27, 2014
May 3-4, 2014

Hidden Valley Base Camp
~ Mt. Shasta

May 10-12, 2014 (Sat-Mon)
May 24-26, 2014 (Sat-Mon) Memorial weekend

Intro to Snow Climbing
April 19, 2014
April 26, 2014 ~ 3 spots

Mt. Shasta Summit Climb
May 17-18, 2014
May 24-25, 2014
May 31-June 1, 2014
June 7-8, 2014
June 14-15, 2014...

Mt. Shasta Glacial Ice Seminar
July 6-9, 2014
Aug 2-5, 2014

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