Domenick DeMatteo

Guide: Washington, Alaska

Originally from Long Island, New York, Dom grew up about as far away from the mountains as one could. He has been a lifelong endurance athlete, competing in both running and cycling. He studied biology and chemistry at Duke University with a focus on human physiology. After graduation, he moved to the West Coast to pursue a career as an exercise physiologist and coach. He soon found mountain sports as the perfect canvas for his endurance pursuits. Through guiding, Dom hopes to share his love for all things alpine, and use his experience as an endurance athlete/coach to help others achieve their goals both on the mountain, and off it.

Significant Ascents

Rainier via Emmons, DC, Kautz
Baker
Shuksan via Sulphide, Fisher-Chimmeys
Glacier Peak
Shasta
Hood

Certifications

Wilderness First Responder and CPR certified
LNT Trainer
AMGA Alpine Skills Course
Avalanche Pro 1

ALPINE ASCENTS BLOG

Cascades Conditions Report 8/13/2026

Summer keeps on rolling and climbing in the Cascades is still going strong. Forecasts for the next week look promising. There will be a slight dip in the freezing levels over the weekend which should help keep things nice and cool higher up in the mountains. There’s also a slight change of picking up some […]
Cascades Conditions Report 8/5/2026

Hello climbers, It’s hard to believe, but the first week of August is almost finished! Climbing conditions throughout the state haven’t changed much since last week. Smoke has moved in the last couple of days throughout the area, but thankfully hasn’t impacted trips or teams up high. We expect a lot of the smoke to […]
Cascades Conditions Report 7/29/2026

Hello climbers, Summer continues in full swing around Washington. Temperatures should hover around seasonal norms for the rest of the week before a slight disturbance over the weekend. There will be a slight dip in the temperature and there may even be a bit of precipitation in the mountains. It should be a nice break […]

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Alpine Ascents International is an authorized mountain guide service of Denali National Park and Preserve and Mount Rainier National Park.
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Domenick DeMatteo