Explore the most popular hiking trails in Mount Si Natural Resources Conservation Area with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

hiking
3 days ago

Great quick, and relatively easy hike close to town. There were only a handful of us on the trail but I think that’s mostly because it’s Tuesday...it was pretty quiet once we started climbing which was nice. The last push to the top is tough but not impossible by any means. Views from the top were nice. Would definitely recommend if you don’t want to drive too far, or don’t have all day to hike.

What a surprise—2 mountain goats chowing down on the rocky cliff not far from the climbing face. On a nice day, this is a good choice for a hike close to Seattle. Sweeping views from the top but be prepared to hear I-90 traffic and see ever expanding North Bend.

backpacking
6 days ago

I got engaged on Mount Si! Great day to go for a hike. Very clear and the trail was well maintained. There is a small spot where a tree has fallen over the trail and people have made a trail through it, but coming back down it’s hard to tell where it is. All over perfect day.

hiking
7 days ago

This trail is correctly rated "Hard." My spouse, dog, and I ascended the Mount Si Trail to the summit on a dreary and rainy day. This did not tarnish our hike one bit. As a novice photographer, the trail offered ample opportunities to take great pictures. Fellow hikers were nice as well.

9 days ago

hiking
13 days ago

Always a fun little hike :)

Great view from the top! A little steep at the end, but totally worth it.

17 days ago

The rain has arrived. Trail was not really muddy or slippery, though the top was shrouded in clouds with zero views. Good exercise as usual. Tip for getting some view under such weather: at the UPPER talus loop trail junction take a detour onto talus loop trail. In about five minutes you will arrive at the talus pile. This is low enough that it can be below the clouds, but high enough to have a descent view.

hiking
19 days ago

Hiked it with my dog on 10/27. I am super out of shape but I pushed myself and made it up and down! I am proud of myself- as this hike is an ass kicker. It was beautiful. My dog had no issues, he’s in much better shape than me haha!!

hiking
20 days ago

Amazing hike today!!! Went up Si a single lady came down engaged

Great hike today! Beautiful weather, no snow, lots of fallen leaves. Glad I brought my poles.

hiking
22 days ago

Decent traffic, great views.

hiking
26 days ago

Butt kicker, but a nice view at the top of the rocks. Only real downside is the number of people and an overall lack of trail etiquette

Wonderful hike with kids

27 days ago

Great view at the top. Nice shade along the trails. Overall not too much litter for as many people that visit this trail.

i think the loop on its own is not worth the drive from Marysville, but the hike was nice and the viewpoint was very pretty.

You can either take the long route to the top which is 6 miles. It's well paved but the incline gradually increases, it almost feels never ending. Or you can take the route where you pass through the falls, which is the most intense 1.5 mile climb to the top. At the trailhead the 2nd route is unmarked, and probably because of how difficult it is. At the top you can see (3) mountains, Baker from the north, Rainier from the South, and I think the last one is Adams.

I'm giving this a (3) star because of the payoff isn't as rewarding as other hikes nearby.

Challenging but rewarding, the best combo. 360 views from above all the local hikes, can see all the NW peaks on a clear day. Great hike on the I-90 corridor.

hiking
1 month ago

As others have mentioned the hike to the falls is great, but afterwards it's not marked at all. I downloaded the GPX to my Garmin but it didn't seem to match the actual trail so wasn't much help. I reached a ridge line at the top of the falls but turned back b/c I couldn't tell if I was still on the trail or not. Trekking poles were useful to me on the more difficult parts.

hiking
1 month ago

Recommended by friend who travels to Seattle along with many locals. Great hike, Douglas Firs were awesome and reaching the top was rewarding!

hiking
1 month ago

great quick hike, great for dogs. Beautiful views from the top.

hiking
1 month ago

Hard but beautiful view of Seattle from the top

hiking
1 month ago

Great hike! My ass feels like it got the workout of a lifetime.

1 month ago

Wooded hike until the very end where the view opens. Moderate hike if you’re in shape. Great view from the top.

hiking
1 month ago

The trail was in great shape and the weather today was perfect. The views from the top were excellent. I would rate this hike a moderate. (Excluding the Haystack)

hiking
1 month ago

Very difficult. I meant to do an adjacent trail, but I got the names mixed up and ended up doing this one on accident. Definitely not for beginners, but the view at the top is amazing if you can stick with it.

hiking
1 month ago

This trail was beautiful! After spending a lot of time in a city lately, I was so happy to be surrounded by so many big trees. The trail is pretty steep and I was with some people who weren’t regular hikers so we weren’t able to make it all the way. Definitely a good workout! Saw a handful of other hikers along the way so not super quiet.

1 month ago

Difficult due to elevation. Beautiful at sunset but gets dark fast!

hiking
1 month ago

Solid hike with an amazing view from the top. Highly recommend going all the way and climbing up the side to the tip top. The only downside is going back down really took a toll on my knees. nonetheless I shall return for round 2.

Really great and challenging trail. Fairly steady incline and the scramble up Haystack is a nice way to cap off the summit hike!

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