"Out of all the people I've climbed with over the years around the world, my experience climbing ice with Ian has been one of the most memorable in my life. Not only is he one of the strongest, fastest and most efficient climbers I've met, but also gracious and a blast to spend time with. I can't wait to climb with Ian again."
- Erik Weihenmayer, Golden, Colorado, first blind climber to summit Mt. Everest.
“My first climbing experience was with Adirondack Mountain Guides and Ian Osteyee. Under Ian’s skillful training I was lead climbing 5.8 multi pitch Rock routes by the end of my first summer. I have since had numerous experiences with other guides from other areas and I can confidently say that Ian represents the epitome of the professional mountain guide. I now climb with other partners, but still enjoy climbing ice and rock with Ian whenever I can.”