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Welcome to California Ski Guides & California Rock Guides

Formally Mountain Adventure Seminars

California Rock Guides

While the name may seem new, we have been around since 1981 and are one of the oldest rock guide companies in California. As such we bring a depth and variety of
experience that few can match. We take pride in having an intimate knowledge of the state where we guide and have a passion for the snow that is unrivaled. Take some time to look around and get to know us and what we do. California Rock Guides™ is grounded on the principle of providing a high-quality rock guide service throughout California.

Mountain Adventure Seminars

Mountain Adventure Seminars (MAS) and SWS Mountain Guides (SWS) have combined guide services, along with our sister companies California Ski Guides (CSG) and California Rock Guides (CRG), to give you more mountaineering, skiing and climbing adventures, courses and clinics than ever before in California! By blending the same fantastic courses, climbs and service offered by MAS with SWS’s large venues – from Mount Shasta in the North to Mt. Whitney in the South – your outdoor adventure possibilities are endless.

California Ski Guides

While the name may seem new, we have been around since 1981 and are one of the oldest ski guide companies in California. As such we bring a depth and variety of
experience that few can match. We take pride in having an intimate knowledge of the state where we guide and have a passion for the snow that is unrivaled. Take some time to look around and get to know us and what we do. California Ski Guides™ is grounded on the principle of providing a high-quality ski and split board guide service for the state of California and beyond.

Bear Valley Office, Bear Valley California

Sierra Wilderness Seminars Inc. our parent company was founded by Timothy Keating in Mt. Shasta in 1981 and is celebrating 36 years of guiding adventure lovers into the California wilderness.
MAS was founded in Bear Valley in 1996 and brings 20 years of outdoor adventures to our guiding family. SWS Mountain Guides, California Ski Guides, and California Rock Guides is led by Timothy Keating, David Cressman, and JB Brown and is a reflection of their love for the outdoors and enthusiasm for introducing, sharing and educating others in “the wild places.”
Our main office and 25 person bunkhouse are located in Mt. Shasta, with additional offices in Lone Pine and NOW  our new BEAR VALLEY OFFICE at 265 Bear Valley Road just inside the Bear Valley Lodge.

Bear Valley Office

“We are thrilled to bring Bear Valley and all MAS courses into the SWS family.”

MAS/SWS NOW operate the broadest range of programs in the most venues in California of any guides service: Mt. Shasta, Mt. Whitney, Mt. Russell, Pinnacles, Castle Crags, Alabama Hills, Crystal Crag, Bear Valley,
Lover’s Leap, Calaveras Dome, North Palisade, Temple Crag, Mt. Sill, The Incredible Hulk, International Expeditions and much more!

Winter adventures include mountaineering, ice climbing, avalanche education, and backcountry ski/snowboard, telemark and snowshoe adventures.

Summer adventures include mountaineering, rock climbing, trekking and more!

Find your adventure today on one of our websites or call 888.797.6867

California Rock & Ski Guides Corporate Sponsors

Justins
Clifbar
Black Rock Coffee Bar
Black Diamond Logo
Bear Valley Logo