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Running trails & routes
United States
Washington
King County

Wilderness Peak Loop

Hard

5.0

(8292)

14,414

runners

Wilderness Peak Loop

00:59

6.27km

350m

Running

Challenge yourself on the Wilderness Peak Loop, a difficult 3.9-mile jogging trail in Cougar Mountain Regional Wildland Park with 1146 feet

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

802 m

Whittaker Wilderness Peak Trail (lower section)

Highlight (Segment) • Trail

Whittaker Wilderness Peak Trail leads through beautiful forest and includes a crossing over a wooden bridge. It forms a loop with Wilderness Cliffs Trail and leads all the way up to Wilderness Peak.

Tip by

2

2.28 km

Whittaker Wilderness Peak Trail Boardwalk

Highlight (Segment) • Trail

3

3.30 km

Bench at Wilderness Peak

Highlight • Summit

The woody Wilderness Peak doesn't offer any views but you will find yourself in the middle of the forest. There is a bench to take a break and enjoy a little snack and if you want to, you can sign the summit register.

Tip by

B

6.27 km

End point

Parking

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Way Types & Surfaces

Way Types

6.26 km

Surfaces

6.26 km

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Elevation

Elevation

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Weather

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Today

Tuesday 19 May

18°C

10°C

28 %

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Max wind speed: 10.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the terrain like on the Wilderness Peak Loop?

The terrain is quite varied and challenging. You'll encounter steep forested hillsides, significant mossy boulders, and a narrow boardwalk navigating a low, swampy area. Expect rocky and rooty sections, multiple creek crossings (some with potentially slippery wooden planks), and often muddy or wet conditions, especially after rain. The first half involves a sustained steep ascent, followed by a steep descent.

What can I see along the route?

This loop offers an immersive forest experience. You'll pass through beautiful old-growth conifers, a hanging valley with large mossy maples, cedars, and boulders, and alongside a cascading creek. Highlights include the Whittaker Wilderness Peak Trail (lower section) and the unique Whittaker Wilderness Peak Trail Boardwalk. While the summit itself doesn't have expansive views, you'll find a Bench at Wilderness Peak. In spring, look for wildflowers like trillium. You can also observe evidence of past logging operations.

Is the Wilderness Peak Loop dog-friendly?

Yes, this trail is dog-friendly. However, all pets must be kept on a leash.

What is the best time of year to jog this loop?

This is a popular year-round trail. Spring offers wildflowers, while fall brings vibrant forest colors. Be prepared for muddy and wet conditions, especially during the early season or after rainfall. Winter conditions can also make sections more challenging.

Where can I park to access the Wilderness Peak Loop?

The trail is located in Cougar Mountain Regional Wildland Park. It's conveniently accessible and does not require a parking pass. Specific trailhead parking information can usually be found on the park's official website or detailed trail maps.

Are there any permits or fees required to access Cougar Mountain Regional Wildland Park?

No, there are no permits or entrance fees required to access Cougar Mountain Regional Wildland Park, making it a very accessible option for a challenging half-day workout.

Are there any specific challenges or unique features to be aware of on this trail?

Be prepared for a sustained steep ascent during the first half and a steep descent on the return. The trail is known for its massive mossy boulders and the unique boardwalk sections that traverse swampy areas. It's considered one of the tougher routes on Cougar Mountain, with sections like the Gombu Wilderness Cliffs Trail being particularly steep. Good fitness is recommended.

Does the Wilderness Peak Loop connect with other trails?

Yes, the route passes through sections of several other official trails within Cougar Mountain Regional Wildland Park, including the Whittaker Wilderness Peak Trail, Gombu Wilderness Cliffs Trail, Squak Mountain Connector Trail, Long View Peak Trail, Shy Bear Trail, Ring Road Trail, and Wilderness Creek Trail.

What kind of gear should I bring for this jogging loop?

Given the rocky, rooty, and often muddy conditions, sturdy trail running shoes with good grip are highly recommended. Layers of clothing are advisable due to elevation changes and forest cover. Bringing water is also a good idea, as there is no water available directly on the trail.

Is this a good trail for beginner joggers?

This trail is rated as 'difficult' and is considered one of the tougher routes in Cougar Mountain Regional Wildland Park. It features sustained climbs and descents, requiring good fitness. While rewarding, it might be challenging for absolute beginner joggers. Those new to trail jogging might prefer starting with easier routes in the park before tackling this loop.

How long does it typically take to complete the Wilderness Peak Loop?

The loop is approximately 6.3 kilometers (3.9 miles) long. For jogging, it typically takes around 59 minutes to complete, depending on your pace and fitness level.

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