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Education Exceptional, accessible climbing education for all levels! Plus explore Canyoning, Wilderness First Aid, and more. Close
Activities & Events Join us for exhilarating climbs, scenic hikes, and conditioning Street Rambles, plus explore Base Camp, our free series of lectures, films, and presentations. Close
Community & Member Resources Learn more about community grants, stewardship opportunities, and our mountaineering library, plus access member resources. Close
About Us Discover the Mazamas! Explore our history, commitments, facilities, and more. Close

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Currently viewing: Aug 6, 2025 - Aug 5, 2026

527 SE 43rd Avenue
Portland, OR 97215

Hours (Phone):
TUE–THU, 10 a.m.–4 p.m.

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TUE–THU, 10 a.m.–4 p.m.

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North Sister, South Ridge Hayden Glacier
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