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Mount Si

Last modified Oct 24, 2009 06:30 PM
Contributors: CourtenayH
Mt. Si. Photo by Bob Brooks.

Mount Si should be experienced at least once by every hiker. In fact, a significant number of Puget Sound residents do just one hike per year, and these annual hikers almost invariably turn to Mount Si every time. In the early spring, mountain-loving backpackers and climbers use the trail as a tune-up for the coming season. Others come because the trail is one of few that becomes snow-free early in the year. Land managers estimate that Si draws between thirty thousand and fifty thousand visitors a year, making it the most heavily used trail in the state. As a result, on any sunny summer weekend the trail will be crowded--almost to the point of having to take a number and get in line. Really, it's not that bad, and the steep trail soon separates the serious hiker from the casual mall walker. And Si's payoff is incredible: views of the Upper Snoqualmie Valley, the Puget Sound basin, and far beyond.

From the broad parking lot, the trail climbs moderately for 1 mile to the first views of the long hike. Here, at around 1600 feet, you'll find wonderful views from atop a rocky bluff on the side of the mountain. Hikers short on time and stamina could turn around here for a modest 2-mile outing.

As you near the 1.8-mile mark, you'll sweep alongside a small brook, with grassy banks on which to rest. This is Snag Flat--the site of an old burn, as evidenced by the blackened scars on the trunks of many of the old Douglas-firs in the area.

The trail then pushes on, never wavering from its steep ascent, until you finally crest the last slope and step out into the wildflower-filled meadow at the summit, or rather, the summit basin. The true summit of Si is atop the big rock "haystack" that towers over the edge of the meadow. The haystack does sport a scramble path to its summit, but the route is tricky, with incredible exposure (one slip and you'll plummet hundreds--thousands?--of feet). It's best not to attempt the Haystack, especially considering the added danger of other people kicking loose rock down, creating deadly missiles from above. Besides, the views atop the rock are no better than those you'll enjoy from the meadows at its base.

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Recent Trip Reports

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There are 331 trip reports for this hike. See all trip reports for this hike.
Mount Si — Nov 01, 2009 — Just a hiker
Day hike
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Well, being lazy somewhat paid off. I did not want to set an alarm, forgot about Daylight Savings or...
Well, being lazy somewhat paid off. I did not want to set an alarm, forgot about Daylight Savings or Standard or whatever time kicked in today and did not want to drive far in the gray weather.

So when I got up at about 6:30am and the weather radio said it was 5:30am, I remembered what I forgot. Nodded off a bit longer and decided on Mt Si.

Got to the parking lot and there were already folks returning - now that is an early start. Headed up and being Mt Si, headed up some more. The sun lit up the trail in places and felt nice as it highlighted various shrubs and trees. Then above Snag Flats, the clouds blocked the sun and it got a bit chilly. Near the top, the sun emerged again and it felt nice on the very wet shirt.

My pace, if you can call crawling a pace, slowed a bit. But I emerged into the open area where the sun came out once again. Up the two flights of stone steps and the rime flocked the trees and flattened vegetation looking very sparkly. There were some small patches of snow but the flocking appeared due to the fog/clouds freezing as it wafted around the trees and shrubs.

The upper bench was wet from thawing so found a rock to sit on and take in the warming sun. Headed down to the view over Snoqualmie Valley and North Bend. Rainier was hidden by the clouds.

Down was its slow tromp against the hikers coming up. Not as many as the last time but still enough adventurous folks doing Mt Si before it becomes an icy, vertical rink.

There were some muddy patches and the fallen leaves can obscured rocks and other small obstacles on the trail.

Again, a much nicer day than originally anticipated.

Till the next time.........
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Mount Si — Sep 27, 2009 — Just a hiker
Day hike
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Excellent day for a hike up Mt Si. Fall is definitely in the air and in some of the...
Excellent day for a hike up Mt Si. Fall is definitely in the air and in some of the shrubs.

An early start allows me to hike my pace without having to change rhythm as I pass or get passed. There were quite a few parties coming down so they really got an early start.

Stopped just shy of the Haystack and enjoyed the view. It was breezy and I put on a wind shell. Spent a bit of time just relaxing and eating half of my sandwich.

Headed on down and ran into the usual hordes heading up. And they were still starting out as I reached the parking lot. Trail is in excellent shape.

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Mt. Si old trail — Aug 20, 2009 — OneWhoHikes
Day hike
Features: Fall foliage | Ripe berries
Issues: Bugs
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It was a great evening to do the Mt. Si hike. We started at 4pm and it was still a...
It was a great evening to do the Mt. Si hike. We started at 4pm and it was still a little on the warm side, but after climbing up, it began to cool down. The bridge at the beginning of the hike has been raised and redone, what a wonderful job the workers did. There were a few pesky bugs around at the top, but not too bad. We were able to see some Fall colors already and also able to get some great pictures. NO crowds on a weeknight! Happy Hiking :0)
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Mount Si — Jul 18, 2009 — White Lotus
Day hike
Features: Wildflowers blooming | Ripe berries
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1st trip up Mt Si. Beautiful weather on this day. It was quite warm, perhaps high 80's? Parking lot looked...
1st trip up Mt Si. Beautiful weather on this day. It was quite warm, perhaps high 80's? Parking lot looked smaller than the 175 spaces advertised or maybe there were more spaces around a corner? Arrived at 11:30am, there were couple spaces for me and my compact car. Trailhead was easy enough to find, I just followed the others.

The elevation gain starts immediately and doesn't relent. I kind of like this because the John Muir trail in Yosemite goes flat in some places, steeper in others. It's actually easier to develop a rhythm when the hike is consistent because you know what's coming. The trail is maintained pretty much the same way throughout, which is, rocky, not paved. I was half expecting some areas near the beginning of the hike to have easier access since I read somewhere about making the bottom part wheelchair accessible.

The little area called "Snag Flat" is a lovely little area with boardwalk with a bench at the end of it. A great place for a couple or small family to rest and have a snack. This is near the half way point, although there aren't any views to be had here.

The first really nice view occurs right in front of the 3.5 mile marker. It's a beautiful view of southern WA, which if you move a little higher, can see Mt Rainier in the background.

Other reviews I read were a bit deceiving as for the time. I read many reviews saying it took them 4 hours round trip. I suppose if you avoided the Haystack this would be doable, but you are missing out on the best part so I don't really consider this a complete trip.

The Haystack is a tall intimidating, daunting wall of rock that must be climbed in order to reach the highest part. It's entirely doable by inexperienced climbers. I saw a father with 2 kids aged 7 and 11 go up to the top so it's far from impossible. I can see how many people would turn around at this point because I almost did, but once you are on the rock face and realize that it's not too bad, you can proceed.

I must say, you should be a little bit crazy to climb the Haystack. It really is quite steep and people have died doing it, although the last person to do so, was not very smart, having done it during icy conditions. Your shoes should have fairly good tread. Mine were kind of worn, which made my adventure a little more tricky. I would compare this part with doing the cables at Half Dome. It is not for those with fear of heights.

Once you get to the top, which took me about an hour, you are treated to the most spectacular views. There is perhaps another 30 feet of climbing after the Haystack, but it's not bad at all. Most people are not willing to climb the extra 30 feet and are content. However, if you do climb to the upmost peak, at the top you'll find a small plastic container which includes a pen and paper to write your name to add to the pile of names already inside the container. A beautiful view of Mount Rainier was accessible as there were only some clouds.

Once you reach the top there is a little trail that leads to a smaller peak. I didn't go there. The views from the very top were enough for me and I was getting a little tired. Going back down was easy. I went on my bottom, which won't earn you any style points, but it's safer and more comforting going down this way. It took me 2 1/2 hours to get down from the very top.

If you are planning to climb the Haystack, plan on at least 5 hours round trip. It could take longer, depending on how many people are there. The Haystack is a potential bottleneck because there isn't much space, so if someone is coming up, you have to wait, unless you want to try to go around them, which I don't. Fortunately, I went at a time when more people were going up than going down, so I didn't have to wait much.

Next time I have to scope out the restaurants before hiking so I can have a place to goto for a nice hot meal after the long hike. North Bend is a small town with a quaint atmosphere and they are celebrating 100 years of existence or something like that (banners everywhere).
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Mt. Si old trail, Mount Si (old trail) — Jul 04, 2009 — linny05
Day hike
Issues: Bugs | No water source
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We started our hike up Mt. Si at around 8:30am, reaching the top rest point at just after 10am. ...
We started our hike up Mt. Si at around 8:30am, reaching the top rest point at just after 10am. The trail was dusty, and we were glad to have started early because by the time we turned back down, the day had gotten hot. Roots and rocks make any views along the trail hard to spot since you're constantly looking at your footing. But, at the top you're rewarded with a spectacular view of the Snoqualmie Valley and Mt. Rainier.

Without much training, some would call it none, it wasn't an easy hike and at times I felt like I wouldn't make it. But, as long as you remember it's not a race, it's not too long of a hike and you will make it up the trail. Folks along the route were very encouraging and friendly. A number of dogs too.

A note on parking: Get there early! When we got to the parking lot, there were approximately twenty other cars there, and by the time we got down, there were over 100 with people getting creative in their parking spots.
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Location
Snoqualmie Pass -- North Bend Area
Washington State Department of Natural Resources
3.62 out of 5
Based on 32 votes
Featured In...

Day Hiking: Snoqualmie Region
by Dan A. Nelson and Alan L. Bauer

To buy the full book, including maps, elevation profiles, photos, and more, visit:

A portion of all book sales from the links above benefits WTA and helps protect and maintain our trails.

Information about this hike provided in partnership with Mountaineers Books. Copyright © Dan A. Nelson/The Mountaineers Books

Roundtrip 8.0 miles
Elevation Gain 3150 ft
Highest Point 3900 ft
Features
Mountain views
Summits
Guidebooks & Maps
Day Hiking: Snoqualmie Pass (Nelson & Bauer - Mountaineers Books)
100 Hikes in Washington's Alpine Lakes
Green Trails Mount Si No. 174 and Bandera No. 206

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Driving Directions
(47.4896, -121.7235) Open in new window
Red Marker Mount Si
47.4896 -121.723483333

From Seattle drive east on I-90 to exit 32 (436th Avenue SE). Turn left (north) over the freeway and drive 0.5 mile to North Bend Way. Turn left (west), and in 0.25 mile turn right (north) on Mount Si Road. The large trailhead parking lot is on the left, 2.5 miles down the road.

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