About CMS

Mountain Climbing & Skiing Guide Service

Colorado Mountain School is a professional climbing guide service with a long and rich history in Colorado and in the surrounding areas. CMS, under various names, has been guiding continuously in Colorado since 1877.  Mike Donahue purchased the company in 1981 and gave it its present name – selling the business to John Bicknell in 1999.  In 2016, Russell Hunter purchased the Colorado Mountain School and is taking the company to new heights.  CMS is currently the largest guide service in Colorado and has more AMGA certified guides than any other guide service in the state. We have developed the most complete outdoor climbing curriculum in the United States. Our offerings range from one-day courses such as Intro Rock Climbing and Big Wall Clinic, to multi-day courses such as our three day AIARE Level 1 course and our five day Rock Climbing Development Series. In addition to our myriad courses, we guide rock, ice and mountaineering throughout the Colorado Front Range and internationally.  Our mission is to provide unparalleled customer service and world class climbing and skiing instruction, while setting the standard in professional guiding.