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United States
Washington
Snohomish County

Boulder River Wilderness

The best running trails in Boulder River Wilderness

37

runners

6

runs

Jogging in Boulder River Wilderness offers diverse and scenic natural features, with routes winding through dense, moss-covered old-growth forests of hemlock, Douglas fir, and cedar. The landscape is shaped by past glaciers, featuring the rushing Boulder River and numerous waterfalls, including the notable Feature Show Falls. Terrain varies from gentle grades along the river to sections with rooted and rocky paths, providing a varied experience for runners. Elevations within the wilderness range significantly, from 700 feet to nearly 7,000 feet,…

Last updated: June 24, 2026

2

runners

#1.

Boulder River Trail

13.0km

01:40

260m

260m

Jog the moderate 8.1-mile Boulder River Trail through old-growth forest to discover waterfalls and river views in Boulder River Wilderness.

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Moderate

17

runners

9.73km

01:25

420m

420m

The Lake 22 Trail loop is a journey through Washington's diverse mountain rainforests, transitioning from ancient old-growth forests with towering cedars and hemlocks to rugged alpine terrain. You'll follow Twenty-Two…

Hard
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6.32km

00:59

340m

340m

The Pinnacle Lake Trail offers a rugged, high-alpine experience, leading you through ancient forests and up steep, technical terrain to two beautiful mountain lakes. You'll navigate rocky, root-filled, and often…

Hard

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

11

runners

6.97km

01:03

330m

330m

The Heather Lake Trail is a pure gem in the Cascades, offering a fairytale-like journey through dense, mossy forests that transition into lush old-growth woodlands. You'll navigate varied terrain, from…

Hard

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Popular around Boulder River Wilderness

Hiking in Boulder River Wilderness

Tips from the Community

Sue
June 1, 2024, Boulder Falls

As you make your way along the trail, the sound of rushing water grows louder, and through breaks in the lush greenery, you can catch glimpses of these magnificent falls. The shimmering cascade tumbles down from a great height, creating a mesmerizing display as it crashes into the river below, sending sprays of mist into the air.

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The Boulder River trail is beautiful, with views of waterfalls cascading into the river from the steep banks opposite the trail. It is a relatively easy, popular trail off the Mountain Loop Highway, although you will likely have it to yourself for a quiet trail run mid-week. It starts as a wide, flat path, once an old railroad logging grade, and continues past the Boulder River Wilderness sign, where the river comes into view. You'll encounter a beautiful double unnamed waterfall and old-growth trees along the way with nice switchbacks. Although there are no mountain views, the forest scenery is still captivating.

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Scott
September 13, 2023, Pinnacle Lake

A large tarn, just before the lake, deceives eager hikers. Continue following the stream from the tarn to discover the true, larger lake. Enjoy lunch while admiring Mount Pilchuck's spires and a unique, east-side view, though camping by the lake is not feasible due to the terrain.

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Alex
June 21, 2023, Heather Lake

Heather Lake sits at the top of a climb best accessed between May to November between snowy seasons. Climb up to the lake, past beautiful hemlock trees and enjoy the clear water and beautiful mountain backdrop from the Heather Lake Viewpoint. The dirt parking lot at the trailhead is located on Mount Pilchuck Road, off of the main highway, Mountain Loop Highway.

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Frequently Asked Questions

What kind of terrain can I expect on running routes in Boulder River Wilderness?

The Boulder River Wilderness offers a diverse range of terrain for runners. While routes like the Boulder River Trail feature a gentle grade and well-maintained paths, you can also encounter sections with rooted and rocky paths, occasional mud, river rock, and bridges. Elevations vary significantly, from 700 feet to nearly 7,000 feet, providing options from fairly easy riverside jogs to challenging climbs.

Are there any running routes suitable for beginners in Boulder River Wilderness?

Yes, the Boulder River Trail is an excellent choice for beginners. It's classified as moderate, but offers a gentle grade and continuous views of the river and waterfalls, making it accessible for those new to trail running. Its well-maintained path provides a smooth experience through lush old-growth forests.

Can I bring my dog on the running trails in Boulder River Wilderness?

Many trails in the Boulder River Wilderness are dog-friendly, but it's always best to check specific trail regulations before heading out. Generally, dogs are welcome on leash, allowing them to enjoy the scenic environment alongside you. Always practice Leave No Trace principles and pack out any waste.

Are there any running routes that feature waterfalls or other natural landmarks?

Absolutely! The Boulder River Wilderness is renowned for its waterfalls. The Boulder River Trail runs alongside the river, offering continuous views and the sound of flowing water, and provides easy access to Feature Show Falls, which drops 200 feet directly into the river. You'll also encounter dense old-growth forests and views of prominent peaks like Whitehorse Mountain and Three Fingers.

What is the best time of year to go running in Boulder River Wilderness?

The Boulder River Wilderness is accessible year-round, but the best time for running generally depends on your preference. Spring and fall offer cooler temperatures and vibrant foliage, while summer provides warmer, drier conditions. Winter running is possible, especially on lower elevation trails, but be prepared for snow and ice at higher altitudes and check conditions before you go.

Are there any circular running routes in the Boulder River Wilderness?

Yes, there are several circular running routes available. For example, the Lake 22 Trail loop is a popular difficult route that takes you to a scenic alpine lake and back. Another option is the Lake 22 loop from Lake Twenty Two Trailhead, which also offers a challenging circular experience.

What kind of wildlife might I encounter while running in this region?

The Boulder River Wilderness is home to a variety of wildlife. While running, you might have the opportunity to spot black bears, black-tailed deer, cougars, and mountain goats. Always be aware of your surroundings, make noise to avoid surprising animals, and never approach wildlife.

Are there any long-distance running trails for experienced runners?

For experienced runners seeking a longer challenge, the Boulder River Trail offers an 8.1-mile (13.0 km) out-and-back route that can be extended. While classified as moderate, its length and varied sections provide a good endurance test. Other difficult routes like the Lake 22 loops also offer significant mileage and elevation gain.

Are there any family-friendly running options in Boulder River Wilderness?

For families looking to enjoy a run or walk together, the lower sections of trails like the Boulder River Trail are ideal. Its gentle grade and scenic views of the river and waterfalls make it suitable for various ages and fitness levels, offering a pleasant outdoor experience for everyone.

What are some challenging running routes in the Boulder River Wilderness?

For runners seeking a challenge, the Boulder River Wilderness offers several difficult routes with significant elevation gain. The Pinnacle Lake Trail is a demanding 6.3 km route with substantial climbing. Another great option is the Heather Lake Trail, a 7.0 km path leading through lush forest to a picturesque lake, also rated as difficult.

Is parking available at the trailheads for running routes?

Parking is typically available at the main trailheads within the Boulder River Wilderness. However, specific parking availability and regulations can vary. It's advisable to arrive early, especially on weekends or during peak seasons, as popular trailheads can fill up quickly. Always check for any required permits or fees before your visit.

What makes the Boulder River Wilderness unique for trail running?

The Boulder River Wilderness stands out for its unique combination of natural features. Runners can experience dense, moss-covered old-growth forests, the continuous sound and sight of the rushing Boulder River, and numerous waterfalls, including the impressive Feature Show Falls. The dramatic topography, shaped by past glaciers, with prominent peaks like Whitehorse Mountain, provides a stunning and varied backdrop for any run.

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Hiking in Boulder River Wilderness

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