Climbing Snowmass Mountain in the Summer

Ascend, Explore, Discover

Professional Mountain Guide Service in Aspen Colorado

Adventure with Aspen Expeditions’ Expert Guides

Aspen Expeditions is a four season, technical mountain guide service based in the heart of the magnificent Rocky Mountains in Aspen, Colorado, where we have been guiding and teaching rock, ice, ski & alpine mountaineering skills since 1977. With our ski town heritage, we specialize in worldwide adventure skiing from the deep snows of Hokkaido, Japan, the fjords of Iceland and Norway, remote Alaskan glaciers, famed European hut traverses to the jagged peaks of the Andes and classic South American volcanoes.  


Unforgettable Summer Adventures Whether you have no experience or lots of experience, Aspen Expeditions has an amazing Summer season adventure for you! We offer privately guided custom mountain and gravel biking, hiking, backpacking, hut trips, rock…

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Winter Mountain Guiding Adventures If you are looking to ski on one of Aspen’s four ski areas, call the Aspen Skiing Company… If you are looking to do anything else outdoors in the winter, call…

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Unleash Your Passion for Adventure Aspen Expeditions has a long history of providing smaller privately guided, custom expeditions locally in Colorado and around the globe. It’s in our name after all. Operating in a world…

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Aspen Alpine Climbing

“Fantastic lift assisted backcountry day with Nate. Very knowledgeable, timed the entire day to perfection and found some epic powder. Will definitely be back!”

— Timothy Fox

“I have done three climbs with AE, the Bells Traverse with Nate E, Capitol with Nate E, and Pyramid with Britt. I had a great time on all three trips and felt very safe the whole time. Would highly recommend!”

— Jeff Hughes
North Maroon and South Maroon

Popular Summer Adventures

Rock Climbing

Aspen Expeditions offers daily custom guided rock climbing and rock climbing instruction in Aspen and the surrounding areas…

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Overnight Backpacking

Join us on a guided backpacking adventure, through some of the most beautiful mountain terrain in the Aspen-area The options are endless for this fully customizable adventure backpacking trip. Some of our favorites include traversing…

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