Guided Mountain Adventures in the Pacific Northwest and Beyond!
All skill levels welcome, from first-time rock climbers to experienced ski mountaineers!
Popular and Upcoming Programs
Not sure which program is right for you?
Schedule a free planning call with Koby or Ben. No pressure, just good advice!
Mountain Adventures, Led by Experts
Koby Yudkin & Ben Lim
From Smith Rock to Mt. Hood and up to Mt. Baker and the North Cascades, we offer guided rock climbing, mountaineering, and backcountry skiing adventures and education, led by Portland’s only AMGA certified guides.
What Our Guests Say
"I scheduled a private backcountry ski day and could not have been more satisfied. Ben was patient, positive, and very knowledgeable in the field. I felt very safe and learned a lot in just one day. I would highly recommend Trillium Alpine Guides to everyone!"
Mary M. - First Tracks
“Koby was an expert in all topics covered. He took extra time to make sure everyone understood the skills being taught. Highlights for me were learning how to set snow anchors and crevasse rescue.”
Leslie F. - Crevasse Rescue Course
"I had a fantastic private ski tour with Ben - he was a great travel partner and we absolutely got the goods all around Mt. Lincoln and Judah! I learn a whole lot of up-track tips & tricks from Ben's expertise. Good turns and smiles were shared!"
Sam R. - Private Backcountry Ski Tour
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