Wilderness Peak

Total Distance: 3.5 miles
Total Ascent: 1200ft
Highest Point: 1600ft
Difficulty: Moderate
Our Hiking Time: 2h
Required Permit: None
To get there, take I-90 to Exit 15 and head right onto Highway 900, also known as Renton-Issaquah Road. Continue for a little over three miles to the signed Cougar Mountain Wilderness Creek Trailhead on your right. The driveway is easy to miss – keep an eye out for a paved road heading uphill. Park in the small parking lot and head up. View Google Directions >>
The trail begins at the Wilderness Peak Trailhead, and combines the Wilderness Creek, Wilderness Peak, and Wilderness Cliffs trails into a short loop through Cougar’s lush mixed forest. Begin by heading uphill and almost immediately crossing Wilderness Creek, which will be your companion for the next mile or so. Gently switchback through a sea of sword fern and salal for about a half-mile under a canopy of alder and maple to find the first junction. Here, a small bridge crosses the creek and the Wilderness Creek Trail continues to the left while Wilderness Cliffs Trail branches right. Either trail will get you to the top, but because the Cliffs Trail is significantly steeper, most folks head left onto the Wilderness Peak Trail.

As you head left, you’ll pass through The Boulders, a collection of moss-covered glacial erratics deposited millennia ago by retreating glaciers. As you climb up the creek valley, more and more surfaces are covered with moss and fern. At the same time the forest increasingly yields to larger numbers of cedar and fir. Soon you’ll find yourself crossing boggy areas on narrow boardwalks before climbing out of the creek valley up to Shy Bear Pass where a number of trails intersect and connect up with the rest of the Cougar Mountain trail system. From here you can follow the Shy Bear Trail into the center of the park, or take a quick jaunt out to Long View Peak. While the area is well-signed, if you're looking to do a little extra roaming, you may want to take along a map.

We veered to the right onto Wilderness Peak Trail, which glides fairly easily to your destination. A short spur leads out to Cougar’s highest pinnacle. There are no views here, just the quiet of heavy forest, a sturdy bench and a summit register. Take a moment to write a little something in the register, then head back to the main trail and take the Wilderness Cliffs Trail down to complete the loop. One word of caution as you near the bottom: there is a very tempting trail junction that continues downhill. Resist the urge to follow it and head back to the Wilderness Creek Trail and the creek crossing.

This is a great hike for an afternoon or post-work tromp through the forest. While not incredibly steep, it is a little bit of a work out through Cougar’s varied landscapes – everything from bogs to old growth. This loop is also hiker exclusive, so you’re unlikely to encounter any horses, which may be important to some dog owners. What this hike lacks in views it makes up for in landscape and solitude, as you can expect a little less traffic in this section of the park. If you haven’t made it out to this end of Cougar Mountain yet, consider a trek up to Wilderness Peak in the coming weeks.


From the early coal mining days to the area’s more recent military history, the nearly 30-year-old park contains and preserves a rich cultural legacy. However, Wilderness Peak is conspicuously absent from this saga. Our only guess is that this section of forest really was something of a wilderness at one time – at least compared to the nearby coal mining operations. Wilderness Peak is made of different rock than other portions of Cougar Mountain, so there was little to lure the miners away from the rich coal seams that ran below the peak. And while some portions of the park were logged in the 1920s and 1940s, other sections were never logged at all, including areas near the top of Wilderness Peak.
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