Owner/operator Jason Cook started climbing indoors in 2007 while working as a structural engineer in Chicago. He grew to love the sport very quickly and has been climbing regularly ever since. He has a very diverse climbing history including rock, ice, alpine, and glacial mountaineering. Jason took his American Mountain Guides Association (AMGA) Single Pitch Instructor (SPI) course in Estes Park, Colorado in the summer of 2010 and went on to successfully complete the course assessment in the fall of 2010 at Joshua Tree National Park in California. In early 2011, Chicago Rock & Ice Guides was formed to serve climbers in the greater Chicago area.

Jason is Wilderness First Aid certified through the American Red Cross and holds a current CPR endorsement also from the American Red Cross. In early 2010 after a long session of ice climbing in Ouray, Colorado, Jason completed his American Institute for Avalanche Research and Education (AIARE) Level I Avalanche Training Course allowing him to have confidence traveling and climbing in avalanche terrain.

Jason is a graduate of Michigan Technological University and holds a Master of Engineering degree from Massachusetts Institute of Technology. He started working soon after graduating for a structural engineering firm in Chicago. After being laid off due to the economic downturn in the spring of 2009, Jason traveled on several extended climbing trips gaining necessary experience to pursue a career in the outdoor industry.

In the fall of 2011 Jason accepted a new full-time engineering position with Ayres Associates based out of the Eau Claire, Wisconsin office. As a structural inspector Jason is able to keep his active and adventurous lifestyle by performing underwater inspection of bridges and climbing around inspecting various ancillary highway structures. In this free time you can catch him climbing at the indoor climbing wall at University of Wisconsin - Eau Claire. Chicago Rock & Ice Guides is still active despite the transition to Wisconsin and for the time being the business name will remain unchanged.