De Leo Wall Trail is a 6.4 kilometer heavily trafficked loop trail located near Renton, Washington that features beautiful wild flowers and is rated as moderate. The trail is primarily used for hiking, walking, and running and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

Distance: 6.4 km Elevation Gain: 227 m Route Type: Loop

dogs on leash

kid friendly

hiking

walking

running

forest

views

wild flowers

wildlife

over grown

Most of the hike to De Leo Wall in Cougar Mountain Regional Wildland Park is easy, with a couple of tough climbing sections. The trail is suprisingly remote given its proximity to civilization and the views from De Leo Wall through the tops of madrone trees are amazing. Cougar Mountains trail system is complex and although the trails are well signed, a map isnt a bad idea.

hiking
3 days ago

Beautiful hike! Muddy but it’s Washington, what do you expect?

hiking
muddy
3 days ago

hiking
muddy
3 days ago

hiking
2 months ago

Very pretty hike in the trees, not challenging at all. However, trail signs are marked very poorly. Barely saw anyone on the trail today, very calm and peaceful hike!

hiking
muddy
2 months ago

Fun day hike! Parking was tough but worth it!

hiking
blowdown
muddy
3 months ago

Followed the AllTrails map/recording for the De Leo Wall lookout and based on the recording, I crossed into private property, so just be considerate. I realized later that I could have taken the Viewpoint Trail, which I'm assuming is still within the county trail system for Cougar Mountain.

hiking
4 months ago

The trails were great. A little muddy. But a beautiful day. I’ve been visiting thus trail for about four years, so it’s become very special. On a clear day you can see Rainier :) i learned this area has been approved for clear cut logging straight through the park including trails, two streams, and the viewpoint. This will impact many wildlife systems and potentially create ecological hazards. There is a city hall meeting 1/21 at 7 in Newcastle. PLease come be of service to support our parks and remaining wilderness. https://www.savedeleowall.org

hiking
7 months ago

Great hike for a forest view. Trail seemed poorly marked and almost got lost; the trail splits a few different times & I didn't download the map first. my dogs had a great time. Not too many fall colors to see but quiet on the trail.

recorded De Leo Wall Trail

hiking
bridge out
7 months ago

hiking
9 months ago

August 2019. Last reviewer said there was a hornets nest. We did not run across one. The view is impeded this time of year due to the deciduous trees in leaf. If you are looking for a view, it is best to hike after the leaves are down in late fall or early spring. It is a good workout regardless if you keep a steady, quick pace. Sidenote, if you lose the trail in a stand of evergreens about 1/3 of the way, look right and you will see the trail to pick back up.

hiking
bugs
9 months ago

August 2019. Bald host hornet were had some nest near southern trail. They swarmed my friends dog and got another friend. Keep an eye out for their nest/swarms. Otherwise it was a beautiful hike, well kept trails and wildflowers in bloom. Just have a map, i save my all trial mapd, and follow trail signs. Sadly as normal nature is a great reminder that its her home we in.

recorded De Leo Wall Trail

hiking
over grown
scramble
9 months ago

hiking
Sat May 04 2019

Good hike! Map on all trails a need for this one. Very pretty. Good workout.

hiking
Sat Mar 02 2019

It was difficult to navigate in the trail even by using GPS.

Fri Oct 19 2018

Still couldn't find the Wall after two attempts; don't know what I'm actually looking for either. The walk is nice but was hoping for a destination or a view of something. Still a pleasant piece of Cougar Mountain to experience.

hiking
Thu Aug 16 2018

Not too much to see along the trail. The trail is not well marked, so I got lost once.

hiking
Thu Jun 14 2018

Last weekend my golden retriever pup and I enjoyed this trail.

Wed Jun 13 2018

nice trail but can be lost in there without a GPS.

Wed May 02 2018

The hike itself is ok, but as others have mentioned, the “view” is underwhelming and does not make for much of a destination. Opt for the Big Tree Ridge Trail instead if you want a truly stunning view from Cougar Mountain. Also, the only moderate section of this trail is the somewhat steep decline to the so called lookout. This can easily be bypassed by continuing down the main trail and then traversing .1 mile to the lookout. Traverse back and finish the loop.

hiking
Sun Jan 14 2018

Nice view but small view point and trees block view little

Sun Jan 07 2018

I couldn't neccessarily find the De Leo Wall trail because tho it was marked on the map, there was no "you are here" point. Also, none of the trails were marked De Leo Wall. However, this was a fun little hub of interconnected trails.

Mon Dec 11 2017

Went over the summer, and the hike was eclipsed by how buggy it was. Very pretty, though.

Sat Nov 18 2017

Nice walk in the fall, even after rain. The road is still not that wet. One thing to remember is the viewpoint is nothing but a small platform with little view to Renton direction thru trees. And if you continue after the view point, make sure you do not turn right into a way to local community. Always check GPS for right turns.

hiking
Sun Oct 01 2017

There were others on the trail, but it didn't feel busy. Even though it is close to neighborhoods, it feels remote.

Sat Aug 12 2017

A bit shorter and not much elevation. I would consider it a easy hike. A few pretty views but not breath taking. Geocaching treasure hidden ☺️ bring a little nic nac to leave behind if you find it!

hiking
Thu Jul 13 2017

The view from De Leo Wall is underwhelming. But the journey itself is quite pleasant.

hiking
Thu Jun 15 2017

Got to the trail head around 8:30 this morning and there were only a few cars in the parking lot. I like that you don't need any parking permit for this trail. The map was very useful for navigating all the forks in the trails. Followed to the de leo wall lookout point. Not sure if the lookout point was worth it. It was very steep to go down and you don't actually look at anything other than trees. Followed the trail down there back to the de leo wall trail. I didn't follow the loop to go back the way I came. Instead wandered longer on some of the other trails. That's the part I liked most about this area. You can go on a short walk or go longer by using connecting trails. Will probably go here again to explore other parts.

hiking
Tue Jun 06 2017

Quiet and peaceful with a bit of a workout. The loop was taken counterclockwise to avoid steep climbs. Taking the viewpoint #2 trail option had some issues: 1) the trail marker was broken off and left leaning on a tree about 50 yards past the trail - walk back and you'll see the trail downward;. 2) the trail down is getting overgrown and is steep and rocky / sandy / slippery - trekking poles are highly recommended for downhill safety; 3) the view is partially obscured by vegetation; 4) after the trail (you kept going after the viewpoint rather than a tough climb back up), the next trail marker would have you turn left but that takes you back clockwise - instead, just keep going straight to continue.

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