Mount Si Trail

Mount Si Natural Resources Conservation Area, Washington

Distance3.9mi
Elevation Gain4,909ft
Trailhead Elevation664ft
Top3,981ft
Elevation Min/Max662/3981ft
Elevation Start/End664/664ft

Mount Si Trail

Mount Si Trail is a hiking trail in King County, Washington. It is within Mount Si Natural Resources Conservation Area. It is 3.9 miles long and begins at 664 feet altitude. Traveling the entire trail is 8.1 miles with a total elevation gain of 4,909 feet. There is an information map and restrooms. Along the trail there is a bench and a scree. The trail ends near Mount Si (elevation 4,114 feet).

Mount Si Trail Professional Guides

Detailed Trail Descriptions from Our Guidebooks

60 Hikes within 60 Miles: Seattle - Including Bellevue, Everett, and Tacoma (Menasha Ridge Press)
Andrew Weber and Bryce Stevens
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"Just as no tourist can claim to have seen downtown Seattle without a visit to Pike Place Market, there is no such thing as a Seattle hiker who hasn’t been to the top of Mt. Si. Easy to reach, physically challenging, and capped by a commanding view, the mountain known simply as Si is like a city park crossed with a serious Cascade Mountain peak." Read more
Best Hikes Near Seattle (Falcon Guides)
Peter Stekel
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"Dominating the skyline over the town of North Bend like a giant stegosaurus, Mount Si is all that remains of an oceanic plate volcano. There are many classic hikes in the Seattle area, and the summit of Mount Si is the classic of classics. Without a doubt, its one of the most popular hikes in our area. Given its popularity, its interesting to note that within 4 miles the trail rises 3,600 feet. Hiking to the top of Mount Si is like climbing the Space Needle six times. This is not a hike for the faint of heart—or the out of shape!" Read more
100 Classic Hikes Washington (The Mountaineers Books)
Craig Romano
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"Love it or loathe it, Mount Si is a Washington classic. With more than 100,000 hikers a year, it’s quite possibly the most-hiked mountain in the Northwest. Si’s proximity to Seattle and ease in getting to the trailhead certainly contribute to its rock-star popularity. Hikers of all ages, abilities, and persuasions ?ock here in epic numbers. It’s a social mountain. But it’s no easy hike. The views, however—from the Seattle skyline to Rainier—are worth every grumble and ounce of sweat along the way." Read more

Mount Si Trail Reviews

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3/12/2018
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10/9/2011
It is four miles of uphill. If you are in any kind of decent shape it is fine. My son did this with me and didn't break a sweat, but I was really pushing myself. Lots of tree on the way up, and a fantastic view at the top. Very glad I did it, and want to do it again.
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10/4/2009
Fairly steep all the way to the top. No views until you get to the top, but once there it's gorgeous. Lots of craggy rocks to hang out on, and you should hang out and look around all you want, to make up for the lack of views on the way up/down. Bring trail mix and feed the birds, they'll land in your hands.
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8/22/2009
There were a lot of people on the trail, but not the lines that were desribed in previous reviews. The view at the top is worth the pain in the legs!
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4/5/2009
Busy trail, pretty strenuous climb.. nearly all uphill with very few if any flat spots. Amazing view from the top!
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8/14/2008
great workout, very limited views along the way. Views from the summit are great.
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7/9/2007
This a great hike for those who want a westward view toward the Puget Sound, the downtown skyline, and the Olympic Mountains and don't mind hiking with the rest of Seattle. It is a nice, challenging day-hike with a great resting point (the top) and the trail is well-maintained due to the high use. The parking lot is huge, but it was nearly full even at 3 pm when I started. No sunset-viewing, unfortunately, as posted signs warn that the gates close after dusk.
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Trail Information

Mount Si Natural Resources Conservation Area
Nearby City
Mount Si Natural Resources Conservation Area
Parks
Dog-friendly, Kid-friendly, Stroller/Wheelchair Accessible
Accessibility
Moderate to Difficult
Skill Level
Washington DNR, South Puget Sound Region
Local Contacts
Green Trails, Mount Si NRCA No. 206S
Local Maps

Activity Feed

Dec 2018