4.6
(39)
1,309
hikers
3
hikes
Waterfall hiking trails in Boulder River Wilderness traverse a diverse landscape within the Mount Baker-Snoqualmie National Forest. The region features lush old-growth forests with towering Douglas fir and western hemlock, alongside the Boulder River which carves through the terrain. Glacial topography has shaped dramatic valleys and peaks, with elevations ranging from 700 feet to nearly 7,000 feet. The area is characterized by its high precipitation, supporting vibrant ecosystems and numerous cascading waterfalls.
Last updated: May 12, 2026
3.0
(1)
20
hikers
19.4km
09:36
1,320m
1,320m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
8.19km
04:28
1,020m
20m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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16
hikers
10.1km
04:27
460m
460m
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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A challenging hike through lush forest, the Perry Creek trail steadily ascends through the valley until the crossing of Perry Creek, just above Perry Creek falls, where it takes a turn uphill towards Mount Forgotten. At many points the trail is difficult to follow and is unmaintained, plus snow tends to be an issue outside the summer season of June to October, but for well-prepared hikers it's a wonderful trail.
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The summit of Mount Forgotten is rocky, exposed, and unforgiving. If you are lucky enough to summit on a clear weather day, you can expect sweeping views of the close-by summits of Twin Peaks, Dickerman, and Glacier Peak.
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Our guide highlights three challenging waterfall hiking trails in the Boulder River Wilderness, each offering unique perspectives of the area's dramatic cascades and lush forests.
The Boulder River Wilderness receives over 150 inches of precipitation annually, ensuring the waterfalls are often impressive year-round. Spring and early summer typically offer the most powerful flows due to snowmelt, while the lush old-growth forests provide a verdant backdrop even during drier periods. Some trails, like the popular Boulder River Trail, are accessible throughout the year.
Yes, the Perry Creek Falls loop from Buck Creek Falls is a challenging 10.1 km route that allows you to experience the beauty of the waterfalls and surrounding terrain in a circular fashion.
The trails often wind through dense, moss-covered old-growth forests of towering Douglas fir, western hemlock, and red cedar. You can expect varied terrain, from riverside paths to steeper ascents leading to viewpoints overlooking the cascades. The region's glacial topography means dramatic valleys and rugged features are common.
The trails featured in this guide, such as the Mount Forgotten Trail and Perry Creek Trail, are rated as difficult due to significant elevation gain and distance. For easier, family-friendly options in the wider Boulder River Wilderness area, consider trails like the Boulder Falls loop or sections of the Boulder River Trail, which are known for being kid-friendly and offering continuous waterfall views.
Many trails in the Boulder River Wilderness are dog-friendly, including the popular Boulder River Trail. However, always check specific trail regulations before heading out, as rules can vary. Ensure your dog is on a leash and you pack out all waste to preserve the natural environment.
Beyond the waterfalls, the Boulder River Wilderness is rich in natural beauty. You'll encounter ancient old-growth forests, dramatic glacial topography, and towering peaks like Whitehorse Mountain and Three Fingers. Unique geological formations, including steep granite walls and even ice cave formations (such as those found along the Big Four Ice Caves trail), are also prominent in the broader region.
While the sight of cascading water can be inviting, swimming or wading directly in the powerful currents near waterfalls can be extremely dangerous due to strong undertows, slippery rocks, and sudden drops. It's best to admire the waterfalls from designated viewpoints and maintain a safe distance.
The komoot community highly rates the Boulder River Wilderness, with an average score of 4.6 stars. Hikers frequently praise the immersive experience of trekking through ancient old-growth forests, the dramatic beauty of the powerful waterfalls, and the rugged, untouched feel of the wilderness.
Absolutely. All three routes in this guide, including the Mount Forgotten Trail, the Perry Creek Trail, and the Perry Creek Falls loop from Buck Creek Falls, are classified as difficult. They feature significant elevation gains and distances, offering a rewarding challenge for experienced hikers seeking strenuous climbs and breathtaking waterfall views.
Given the high precipitation and lush environment, waterproof or water-resistant layers are highly recommended. Sturdy hiking boots with good grip are essential for navigating potentially wet and uneven terrain. Dressing in layers will allow you to adapt to changing weather conditions, and bringing extra dry clothes is always a good idea.


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