• Jon Sullivan
    Jon Sullivan Director of Operations // EVO Mountain Guide

    Jon grew up bagging peaks on the Front Range. He quickly took up traditional climbing and began training for long, snowy alpine routes in the Rockies. After a semester with the National Outdoor Leadership School and a couple of certifications, he left college and hit the road, climbing full-time.
    Now, Jon enjoys combining his passions for climbing and skiing, pursuing technical climbs with ski descents alongside his wife and adventure partner, Michelle. He has been guiding and instructing for over 8 years and 
    is EVO’s Director of Operations and EVO Mountain Guides’ Program Manager.

  • Jeff Llewellyn
    Jeff Llewellyn Director of Guiding + Development // EVO Mountain Guide

    Jeff began climbing in Indiana. Soon after learning to lead sport outside at the Red River Gorge, he packed up and moved to Boulder. Since then, he has taken up traditional climbing, earned a degree in Outdoor Recreation Leadership from Colorado Mountain College and gone on to become a climbing guide operating in the Black Hills of South Dakota and at Devils Tower in Wyoming. Now, after four years away from the Front Range, Jeff is back and excited to put his skills to use as an EVO Mountain Guide. When he’s not guiding, you’ll find him in Eldorado Canyon, his favorite place to climb.

  • James Klaers
    James Klaers Head Guide

    James has over a decade of experience rock climbing, backpacking, splitboarding and ice climbing. In 2010, he attended the Colorado Mountain College’s Outdoor Recreation Leadership Program, where he discovered his love for guiding and began to pursue his Rock Guide certification. When he’s not guiding for EVO Mountain Guides, you can find James rock climbing and leading Outward Bound trips in the summer and backcountry splitboarding and ice climbing in the winter.

  • Clint Locks
    Clint Locks EVO Mountain Guide

    Clint began climbing in 1997 and was immediately hooked. For him, climbing is much more than a sport, it’s a physical, aesthetic, and emotional outlet.
    Clint has guided and instructed rock climbing in Colorado since 2001, as he
     enjoys helping others experience the beauty of the mountains and believes the full climbing experience can only be achieved through a thoughtful balance of passion, adventure, calculation and risk mitigation. When he’s not guiding or hanging out with his wife and two children, Clint can be found scampering around his second home–Eldorado Canyon.

  • Ryan Knowlton
    Ryan Knowlton EVO Mountain Guide

    Ryan started climbing at Virginia Beach Rock Gym as a kid, and re-found the sport again in college at Boston University. He soon learned to place gear at the Gunks and Farley’s Ledge in Western Massachusetts and later began teaching friends to climb in North Conway, Rumney and Canon Cliff, New Hampshire. In 2016 he and his wife moved into a van to travel and climb and climb. Their trip ended in Boulder, where Ryan found an apartment and began working at EVO. Ryan looks forward to continuing to teach new climbers outdoor skills as an EVO Mountain Guide.

  • Michael Roche
    Michael Roche EVO Mountain Guide

    Mike grew up in New Jersey and started climbing as a teenager in the Gunks. The staunch trad climbing ethic of the region taught him to place gear on lead and appreciate the tri-cam. After finishing school, he moved to Colorado to follow his passion for working in the outdoors. He has 9 seasons of ski instructor experience and works as a Trainer and Lead Climbing Instructor with Avid4 Adventure in the summer. Outside of guiding and instructing, Mike teaches Biology at Front Range Community College. When not at work, you can find him climbing in Eldo, skiing in the backcountry or paddling down Boulder Creek in his kayak.

  • Corey Thompson
    Corey Thompson EVO Mountain Guide

    Corey began climbing while working at a summer camp in New Hampshire in 2006 and hasn’t stopped since. He enjoys the challenges presented in multi-pitch traditional climbing and the unique bonds formed between longtime climbing partners. Corey graduated from the University of New Hampshire in 2015 with a degree in Outdoor Education. While attending UNH, he became a climbing instructor and a Wilderness First Responder. He has been instructing and guiding in Colorado since 2015. When he isn’t working, you’ll find climbing, most likely in Eldorado Canyon.

  • Aaron Henriquez
    Aaron Henriquez EVO Mountain Guide

    Aaron was born in Colorado and was immediately immersed in the outdoors. From kayaking to rock climbing, his passions for nature grew from direct contact with the elements. After 4th grade, Aaron moved with his family the the Republic of Panama, where he learned to surf, spearfish and deep water solo.
    Five years ago, Aaron returned to Colorado and life in the mountains. He is a carpenter, waterman, alpinist and climbing guide. His favorite places to climb are Eldorado Canyon and Rocky Mountain National Park. 

  • Sam Sala
    Sam Sala EVO Mountain Guide

    Sam hails from Tahoe, Nevada, but moved to Colorado in 2006. We have no idea what he did for the first 7 years he was here, but he finally found climbing in 2013 and has pursued trad and ice climbing adventures ever since. Sam began guiding in 2016, and joined EVO Mountain Guides in 2018. When he’s not guiding or teaching clinics at EVO, you’ll find him outside climbing rock or ice in Alaska, Vail, Grand Teton National Park, Rocky Mountain National Park or Eldorado Canyon.

Meet the Guides

Questions? Email Guides@evorock.com

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