Zone C — CascadesDifficult · 5–8 hrs
Mount Si
Difficult · 5–8 hrsZone C — Cascades · 45–70 min
The halo hike: 3,150 feet of relentless climbing to a huge view over the Snoqualmie Valley. Expert-tier hikers only — the "someone carried my toddler up Mount Si" story.
8 mi
Distance
3,150 ft
Elevation gain
5–8 hrs
Hike window
May – October
Season
Good to know
6–10 miles, big elevation — Expert-tier hikers only.
Trailhead requires a Discover Pass — your hiker carries one, so there's nothing for you to buy.
Every booking includes GPS check-in/check-out and full-refund cancellation if we call off a hike for weather or trail conditions.
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