Summer Programs

"I came to Aspen for the winter and stayed through the summer." Aspen is a town of dedicated long time locals and has a reputation for pulling its visitors in season after season. In the summer the town feels big, but the space around town is vast and can be filled with adventures. We guide Day Hikes to high alpine valleys filled with endless fields of wildflowers, streams and lakes. Challenges and personal goals can be met on the Colorado Fourteen Thousand Foot Peaks, through Backpacking Trips, Backcountry Overnight Hut Trips and Rock Climbing. AAG offers a full roster of family adventures as well as Technical Mountaineering Instruction and High Altitude Training for Runners and Cyclists.

All trips include local transportation to trailheads and climbing areas, day packs and poles, and lunches can be arranged if needed.

Backcountry Marathon Training

Boasting spectacular views of the Elk Mountains and the city of Aspen, Colorado below, the Aspen Backcountry Marathon is run almost exclusively on high country dirt trails. Challenging ascents, exciting descents and wide diversity in terrain will challenge even the most well trained athlete. So get your running shoes on and come run the most challenging and scenic marathon you’ve ever run!
Group Social Runs: Every Thursday this Spring and Summer at 6:30pm
Sponsored by AAG on alternate Saturdays at 8:00 am
Both the Thursday evening and Saturday morning runs will meet at the Aspen Power Plant (the old Aspen Art Museum).

Sat, April 4th -- 12 miles
Sat, April 18th -- 14 miles
Sat, May 2nd -- 18 miles
Sat, May 16th -- 21 miles
Sat, May 30th -- 18 miles
Sat, June 13th -- 14 miles
Sat, June 27th -- RACE DAY

Additional Personal Training Plans available for trail, track and online coaching. Please contact AAG with questions:

Leave the Boys Behind

Leave the Boys Behind is a new, female-specific, initiative offered by Aspen Alpine Guides. The initiative is designed with the intention of creating an all-female experience in and around the pristine wilderness and rugged mountains surrounding Aspen, Colorado. Join us this summer for mountain and road biking, trail running, backpacking, peak climbs and international treks! For trip dates and sign up info visit 

This year we're launching a new collection of trips just for girls age 8-15. Our LBB girls trips are 2-night/3-day backpacking adventures designed to cultivate leadership, mentorship and wilderness skills.

Hut Trip:
Pristine hiking and relaxation in the 10th Mountain Hut system.
July 13-15, 2015
Aspen to Crested Butte hike:
Hike through alpine meadows and wildflowers over the 12,500 foot West Maroon Pass. One day or overnight option available.
July 18/19, 2015
Girls Adventures (ages 8-12):
June 19-21, 2015
July 7-9, 24-26, 2015
August 4-6
Teen Adventures (ages 13-15):
July 13-15, 2015
August 7-9, 2015

Hut Run Hut

 Last year's Hut Run Hut was such a great success, we've added two more trips to the quiver. This summer, take on the challenge of a six day run through the heart of the Colorado Rockies! Hut Run Hut is a 100 mile run led by fun, knowledgeable guides and includes overnight stays in 10th Mountain Division Huts, delicious meals and all the camaraderie you need to stay stoked.

July 13-18 - Hut Run Hut with Dylan Bowman - The Perpetuator of Stoke. Nobody brings quite as much enthusiasm to the sport of Ultra Running. The 2015 winner of the Tarawera Ultra Marathon in New Zealand will be joining us in his native Colorado lands. Perpetuating stoke even before our first cup of coffee.

August 3-8 - Hut Run Hut with Scott Jurek - Ultra Running Legend and Plant-based-diet Guru (ie Vegan Champion of the World) will join us for a portion of this trip. By day, Scott will be joining us on our journey through the mountains while at night he will be filling us with the meals that have powered him through thousands of miles and innumerable wins.

September 7-12 - Hut Run Hut with Jenn Shelton - In the world of running, Jenn is the smiling face of grit, determination and wit. The sport has taken her along the John Muir Trail, to the depths of the Copper Canyon and very close to the edge of the human potential (and madness). 
More at

Guided Beginner and Intermediate Rock Climbing pricing

Rock Climb on Independence Pass and in the Roaring Fork Valley. AAG rock climbing guides and instructors love to teach all levels for kids and adults. Instruction in basic rock skills, knots, belaying and movement on rock. All safety equipment including climbing shoes, helmets, harnesses, ropes and anchors are included and lunch can be arranged for full day climbs.

Gear list / Waivers

14'er Peak Climbs pricing

Varying degrees of difficulty and routes make the Colorado 14'ers a challenge for everyone. Peaks include North and South Maroon (the Bells), Pyramid Peak, Snowmass Mountain, Capital Peak, Mount Sopris, Elbert, La Plata and Castle and Conundrum peaks. Pyramid, the Bells and Capitol require a mandatory qualification and training day prior to the climb. All safety equipment including helmets, harnesses, ropes and anchors are included and lunch can be arranged. Additional peaks, routes and areas are available upon request.

Gear list / Waivers

3 Peak Challenge / Non Standard Routes and Trips

Climb North Maroon Peak, traverse the ridge to South Maroon Peak, then descend and finish the day with an ascent of Pyramid Peak. This extreme climb is demanding and requires advance training and strong physical endurance. See more details and pricing.

Day Hiking Trips pricing

Trips are available for all levels into the backcountry in and around Aspen including the high alpine pass crossing from Aspen to Crested Butte.

Gear list / Waivers

Wilderness Backpacking / Backcountry Overnight Hut Trips pricing

Experience a true Colorado outdoor wilderness adventure. We provide guides, trailhead logistical support, and group equipment (stoves, cooking equipment, first aid and emergency gear). Participants will need to provide sleeping bags, pads, backpacks and tents (rental equipment can be arranged if needed).

Gear list / Waivers

Private Guiding and Technical Mountaineering Instruction pricing

Includes multi pitch rock climbing, mountaineering skills such as use of ropes, ice axe and crampons, backcountry first aid, self rescue and navigation with map and compass. All safety equipment including helmets, harnesses, ropes and anchors are included.

Gear list / Waivers

Indoor Rock Climbing pricing

An Indoor Climbing Gym is available for day or evening open climbing and ropes course / climbing instruction. All safety equipment including climbing shoes, helmets, harnesses, ropes and anchors are included.

Gear list / Waivers

Mountain Biking pricing

Full Day Richmond Ridge, Aspen to Snowmass and back, Snowmass adventure including Rim and Government trails. Half Day including Rim Trail, Government, Hunter/Smuggler loop and Rio Grande singletrack practice loops. Hut to Hut trips are also available in some areas.

Gear list / Waivers

High Altitude Training for Runners and Cyclists pricing

Many of our guides compete as athletes in their respective professional divisions and have now brought their personal training programs into the AAG lineup. Come train with us and gain endurance for trail runs from 8000 ft to 14,000 ft and cycle the many high mountain passes in the area. Create a training program that will help you meet your goals and ambitions.

Gear list / Waivers