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 among the best in Tahoe.
As of June 2020, ASI has joined with International Alpine Guides. Together we represent one of the largest and most experienced mountain & ski guide services in California with bases in Truckee, Mammoth Lakes & Mount Shasta.
11400 Donner Pass Rd, Truckee, CA 96161, USA