Near Mt. Si
Near Mt. Si
Near Mt. Si
Near Mt. Si
Near Mt. Si

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Hike Route

Mt. Si

4.4 (127 Ratings)
A steep, well-maintained trail takes you atop Mt. Si with outrageous views of Puget Sound.
7.8
mi
Distance
3,678
ft
Gain
strenuous
Difficulty
BirdingFall ColorsRiver/CreekViewsWildlife
Access Issues
Discovery Pass required year round.

Route Details

Flatter
Steeper
7.78mi
Distance
3,678ft
Elevation Gain
3,678ft
Elevation Loss
55%
Max Grade
4,144ft
High Point
663ft
Low Point
Path Type
There and Back
Description
From the trailhead, follow the well marked "Mt. Si Trailhead" or just follow the throngs of people on this deservedly popular trail. The endless switchbacks and steep terrain begin almost immediately, and will continue until the very top. This trail offers intermediate terrain that can be useful for both the novice hiker and a more experienced outdoors person training for a bigger objective. You'll gain more than 3000 vertical feet in under four miles of beautiful old growth forest. The canopy finally breaks close to the top, revealing some views to the South.Once out of the forest, there are many outcroppings to enjoy your lunch and some views. Most people will stop here- but the more adventurous can continue uphill and right on a stony path to the Haystack, Mt. Si's true summit. This extra 150 ft of scrambling is class 3/4 and is well worth is as the views to the North are revealed.On your way down please do not cut trails. What saves you 30 seconds can cause decades of damage. Also you'll need a discovery pass to park at the lot. Have fun!

Route Conditions

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Contributors
Andrew Stohner