Challenging, original, and beautiful trail races in the Pacific Northwest.

Mountains in the Pacific Northwest

Hyak Passage

October 3, 2026 · 25K · Snoqualmie Pass, WA

Run through the Snoqualmie Tunnel to Annette Lake and back.

View Hyak Passage

We organize and direct professional trail racing events in the Pacific Northwest.

Our courses are built around the landscapes that inspire us. Every race is shaped by the place it moves through and the community that shows up to run it.

We care about competition. We also care about who gets to be here. Access is part of how we operate, not something we add on later. Generous time limits, funding for underrepresented runners, and a culture built on the idea that the trails belong to everyone.

About Cielo Running

The community behind Cielo Running.

Cielo Running team at Hyak
Hyak Passage volunteers
Trail running community in the mountains

Hyak Passage 2025 photos on this page by Somer Runner.

Partners & race legacy

The partners, community, and race legacy behind Cielo Running events.

Run with us.

Snoqualmie Pass, WA