more stats
3.7 miles
Distance
3,317 ft
Climb
-3 ft
Descent
02:11:40
Avg time
3,314 ft
Altitude change
663 ft
Altitude min
3,977 ft
Altitude max
663 ft
Altitude start
3,976 ft
Altitude end
17%
Grade
-5.9%
Grade max
86.8%
Grade min
4 miles
Distance climb
89 ft
Distance down
203 ft
Distance flat
02:11:40
Avg time

Mount Si Trail Details

  • Activities
    • Hike
    • Trail Running
    • Snowshoe
  • Riding Area
  • Difficulty Rating
  • Local Popularity
    100 in Hiking [+]
    • 95 in Trail Running
    • 5 in Snowshoeing
  • Global Ranking
    #11089 in Hiking [+]
    • #27832 in Trail Running
  • Hiking SAC Scale
    T2 Mountain Hiking
  • Trail Type
    Singletrack
  • Direction
    Both Directions
  • Physical Rating
    Moderate
  • Dogs Allowed
    Yes
  • eBike Allowed
  • Land Owner
    Washington DNR
  • OSM Way

The Mount Si Trail is one of the most popular trails in Washington, and for good reason. Less than an hour from Seattle, the summit offers incredible views of the Snoqualmie River Valley and the surrounding area.

There is a very large parking area at the trailhead, but it does fill up on warm weekends. Per usual, it’s best to arrive early. A Discover Pass is required.

The hike is hard enough to be a challenge, but not so difficult that weekend warriors can’t climb it. The trail is almost entirely uphill, with some brief flatter sections to catch your breath. You’re mostly hidden in the lush forest, until roughly 3.5 miles in, when you finally break out of the trees and the views begin.

Once at the top, you have two options. Most hikers take in the views and then return the way they came. For the more adventurous, you can scramble up the Haystack. This rocky outcropping is the true summit of Mount Si, but do not underestimate this final challenge. Many hikers have been injured or stuck here, so if you do not have experience scrambling, it’s best to pass.

As with all trails in the area, this hike is entirely different during winter. If there is snow on the ground, you’ll likely need traction equipment and hiking poles.

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

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  • 0 rides
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6 Months
  • 60 rides
  • 8 miles avg distance
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  • 172 rides
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Mount Si Trail Trail Reports

statusdatedescription
May 31, 2026 @ 9:30am (America/Vancouver)
May 31, 2026
Feb 14, 2026 @ 10:37am (America/Vancouver)
Feb 14, 2026
It was perfect all the way until the top where it got snowy but still very accessible but dress accordingly for the change in temperature.
Jan 24, 2026 @ 9:34am (America/Vancouver)
Jan 24, 2026
Nov 20, 2025 @ 11:09am (America/Los_Angeles)
Nov 20, 2025
Perfection
May 22, 2025 @ 7:50am
May 22, 2025
Trail clear. After overnight rain about five very short mud puddles you must step through to Leave No Trace and stay on trail. Ankle high water...
more »
Status:
on May 31, 2026
Ideal
Avg: 5 (2 votes)
Your vote: 0

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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Partial
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
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Flat N NE E SE S SW W NW
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        Directions to mount-si-trail trailhead (47.488010, -121.723160)

        Photos

        8 more »
        61 |
        Aug 15, 2023 @ 11:07pm
        Aug 15, 2023
        68 |
        Jun 19, 2023 @ 2:54pm
        Jun 19, 2023
        86 |
        Nov 24, 2022 @ 3:48pm
        Nov 24, 2022
        122 |
        Apr 26, 2022 @ 2:22pm
        Apr 26, 2022

        Videos

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        Articles

        The Best Hikes Near Seattle for Every Kind of Hiker
        Jan 25, 2022 from backpacker.com
        Looking for a great dayhike, weekend trip, or multiday expedition near Seattle? We've got you covered.

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        • By trailforksTF Pro Trailforks & contributors
        • #182641 - 6,727 views
        This trails GPS track was originally sourced from OpenStreetMap and will always be available for download in OSM Format.

        Frequently Asked Questions About Mount Si Trail

        Where is Mount Si Trail located?
        Mount Si Trail is located in Mount Si Natural Resources Conservation Area, North Bend, Washington, United States. It is part of the Mount Si Natural Resources Conservation Area trail network. The trailhead is located at coordinates 47.48801, -121.72316.
        How hard is Mount Si Trail?
        Mount Si Trail is rated as Black Diamond difficulty. The physical rating is Moderate. The average grade is 17%.
        What is the elevation gain for Mount Si Trail?
        Mount Si Trail has 3,317 ft of elevation gain. The trail has 3 ft of elevation descent. The elevation ranges from 663 ft to 3,977 ft.
        Is Mount Si Trail a point to point trail?
        Mount Si Trail is not a point to point trail. The direction is Both Directions. The trail type is singletrack.

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