MAS is based in Bear Valley, California at 7,000 feet in the Central Sierra Nevada and offers programs in our own backyard plus Lovers Leap, Phantom Spires, Sugarloaf, Calaveras Dome, Consumnes, Mt. Lassen, Sawtooth Range (Eastern High Sierra), Pinnacles National Monument and throughout the greater San Francisco Bay Area.

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 excellent experience in "wild-places".  We hope to see you out there soon.