is
a year-round outdoor adventure school and guide service specializing
in rock climbing, mountaineering, telemark skiing, avalanche education,
backcountry skiing, snowboarding, and snowshoeing.
MAS is based in Bear Valley, California in the Sierra
Nevada and offers programs in our own backyard plus Mt. Lassen, Lovers
Leap, Calaveras Dome, throughout the Bay Area, Cosumnes,
Pinnacles National Monument and Red Rocks, Nevada.
MAS takes pride in providing
exceptional instruction and finely crafted adventures
designed to optimize learning, self-enrichment and fun. Whether
you choose a one day skills program or a multi-day adventure, MAS
can show you the way to a prosperous career in "wild-places". We
hope to see you out there soon.