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About Great Range Mountain Guides

We are a small group of dedicated mountain professionals that have chosen the Adirondacks as our home range. Collectively, we have over four decades of diverse guiding experience and have set the standard for professionalism in the region. 


Meet The Team


Mark Scott


AMGA Certified Rock Instructor

AMGA Certified Ice Instructor

AMGA SPI Provider

Wilderness First Responder

Mark grew up in the Champlain Valley of New York and started adventure in the Adirondacks at a young age. After traveling and climbing in New Zealand, Peru and throughout the American West Mark settled in the Adirondacks to pursue the craft of mountain guiding and to raise a family of his own. 

Matt Wiech


AMGA Certified Rock Instructor

AMGA Ice Instructor Course Graduate

Wilderness First Responder


Matt has been climbing for over 25 years and considers himself an all around mountain enthusiast.  He enjoys bouldering, technical rock and ice climbing, alpine climbing, expeditions and ski touring.  Matt has traveled extensively to climb.  In addition to guiding rock and ice in the Adirondack Park he’s spent time coaching competitive climbing teams and travels to guide climbers in the Cascade Range, Alaska, and Argentina.  When he’s not guiding others Matt enjoys time cooking seasonal meals, finding local swimming holes, hiking, seeing live music, and of course climbing with his pals. 


Will Roth


AMGA Certified Rock Instructor

AMGA Apprentice Alpine Guide

Wilderness First Responder

Will grew up in Westchester County NY and as a kid was always trying to be outside as much as possible. Climbing first with the Boy Scouts and then a guided 3 day course in the Adirondacks was his introduction to the sport. But these experiences didn't really set the hook for what would become his life long passion. That came while attending Plymouth State College in NH. Cutting his teeth first at the now well known sport climbing cliff Rumney and quickly moving onto the bigger traditional granite cliffs of Cathedral, Whitehorse and Cannon. After college he spent time climbing, snowboarding/skiing and adventuring around the western US. Living in Flagstaff AZ, Salt Lake City UT and Telluride CO before making the decision to move to Keene Valley NY in 2005. An article in Climbing Magazine about the unfolding climbing scene here in the Adirondacks was the catalyst for this final move and he hasn’t left since. Besides the time spent chasing rock, ice and snow throughout the country; he has traveled internationally to Peru, Bolivia, the United Kingdom and France. He also works as an adjunct instructor for the Plattsburgh State Expeditionary Studies program as well as for the North Country Community College Wilderness Recreation Leadership program. Founding the local climbing organization the Adirondack Climbers' Coalition, volunteering as the organization's President and committing time for the DEC's Volunteer Technical Rescue Team take up most of his "free time". Being happily married with two young daughters is what Will is most proud of!

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