- Region
- WA, USA
- Country
- United States
- Best for
- hiking
- Best season
- Spring, Summer
- Permits
- Confirm current permit, pass and reservati…
- Managed by
- U.S. Forest Service, Mount Baker-Snoqualmie National Forest, Darrington Ranger District
Plan with verified data
Boulder River Wilderness trip tools
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Photos of Boulder River Wilderness
How to get there
Select the trailhead that serves the intended route and confirm driving directions and current access with the Darrington Ranger District at (360) 436-1155. The ranger station is at 1405 Emens Avenue North, Darrington, WA 98241. Topographic maps covering the wilderness include Meadow Mountain, Whitehorse Mountain, Helena Ridge, Silverton, and Malardy Ridge.
- Boulder River Trailhead
Access to Boulder River Trail 734, the wilderness’s most popular trail, with old-growth forest and Feature Show Falls along the route.
- Canyon Lake Trailhead
Access to the wilderness via Canyon Lake Trail 720.
- Squire Creek Trailhead
Access to Squire Creek Trail 654. The Squire Creek valley also contains rock-climbing routes.
- Meadow Mountain/Saddle Lake Trailhead
Access to Three Fingers-Goat Flats-Saddle Lake Trail 641. Confirm road and trail conditions before planning a Three Fingers objective.
Sources: fs.usda.gov · University of Montana / federal agency partners · Wilderness Connect / federal wilderness boundary inventory. Confirm road and trailhead conditions with the managing agency before you leave.
WA, USA · United States
- Climbing
- Mountaineering
- Desert Hiking
- Canyoneering
- Hiking
- Wildlife Viewing
- Backpacking
- Canoeing
River forest below Whitehorse and Three Fingers
Boulder River Wilderness protects 49,343 acres of steep forest and mountain terrain in Washington’s Mount Baker-Snoqualmie National Forest. Designated in 1984, it rises from low valleys to peaks nearly 7,000 feet high. Whitehorse Mountain and Three Fingers dominate the skyline, with an old fire lookout on the South Peak of Three Fingers. Below them, streams descend through glacially shaped terrain into dense woods. Boulder River Trail 734 is the wilderness’s most popular trail, passing old-growth Douglas fir, western hemlock, western red cedar, and a few Sitka spruce. Just inside the wilderness, Feature Show Falls drops over a 200-foot cliff directly into the Boulder River. The river corridor offers a forest-and-waterfall outing distinct from the demanding climbing terrain on the higher peaks.
Wet terrain and demanding high-country travel
Annual precipitation exceeds 150 inches, and the combination of steep slopes and thick brush makes off-trail travel arduous. Plan for wet conditions, protect insulating layers from rain, and avoid treating a short map distance as a measure of effort. Higher peaks offer mixed rock and ice climbing, while the Squire and Clear Creek valleys contain rock routes. Three Fingers requires particularly careful planning: difficult road and trail access lead toward a summit lookout reached by ladders ascending exposed rock cliffs. This is not simply an extension of a river walk. Choose objectives to match navigation skills, equipment, and comfort with exposure. Black bears, black-tailed deer, cougars, and mountain goats inhabit the wilderness; give wildlife space and keep food secured.
Access planning and wilderness care
Choose a trailhead for the specific trail rather than treating Boulder River Wilderness as a single entrance. Besides Boulder River Trailhead, access includes Canyon Lake, Eight-Mile, Kelcema Lake, Marten Creek, Neiderprum, Squire Creek, and Meadow Mountain/Saddle Lake trailheads. Confirm current road and trail conditions and any permit requirements with the Darrington Ranger District before departure. Potable water is not available, so carry water or bring a way to treat collected water. Camping is prohibited within 200 feet slope distance of the shorelines of Bandana Lake and Saddle Lake. Campfires are also restricted around those lakes and along part of Three Fingers Trail 641, and are prohibited in Goat Flats. All wilderness trails are closed to pack and saddle stock. Follow wilderness regulations and Leave No Trace practices.
Where on earth
Satellite imagery flying in from a world view to Boulder River Wilderness, United States. Use the + / − buttons, or click the map to zoom with your scroll wheel; drag to pan and pinch to zoom on touch.
Coordinates
- Decimal degrees
- 48.1620, -121.6815
- Latitude (DMS)
- 48° 9′ 43.2″ N
- Longitude (DMS)
- 121° 40′ 53.3″ W
Coordinates are an access-point reference for Boulder River Wilderness, not a route. Carry a paper map and confirm trailhead or put-in access with the managing agency before you go.
Topic summary
Many are the mysteries of the Boulder River Wilderness. Less than 25 miles from Puget Sound, as the marbled murrellet flies, rise the crags and soggy forests of this wilderness. With elevations ranging...
Key takeaways
- Region: WA, USA
- Country: United States
- Good for: hiking
- Coordinates: 48.162, -121.681
Intended uses
hiking
Keep planning
Popular pursuits at Boulder River Wilderness
- Climbing
Rock and alpine lines with approach beta.
- Mountaineering
Glacier and high-route objectives with real consequence.
- Desert Hiking
Water carries and heat management drive the plan.
- Canyoneering
Narrows, downclimbs, and flash-flood timing.
- Hiking
Day miles on marked trail, with route notes and trail links below.
- Wildlife Viewing
Best light, best season, and where animals move.
Animals around Boulder River Wilderness
River forest below Whitehorse and Three Fingers
Boulder River Wilderness protects 49,343 acres of steep forest and mountain terrain in Washington’s Mount Baker-Snoqualmie National Forest. Designated in 1984, it rises from low valleys to peaks nearly 7,000 feet high. Whitehorse Mountain and Three Fingers dominate the skyline, with an old fire lookout on the South Peak of Three Fingers. Below them, streams descend through glacially shaped terrain into dense woods. Boulder River Trail 734 is the wilderness’s most popular trail, passing old-growth Douglas fir, western hemlock, western red cedar, and a few Sitka spruce. Just inside the wilderness, Feature Show Falls drops over a 200-foot cliff directly into the Boulder River. The river corridor offers a forest-and-waterfall outing distinct from the demanding climbing terrain on the higher peaks.
Wet terrain and demanding high-country travel
Annual precipitation exceeds 150 inches, and the combination of steep slopes and thick brush makes off-trail travel arduous. Plan for wet conditions, protect insulating layers from rain, and avoid treating a short map distance as a measure of effort. Higher peaks offer mixed rock and ice climbing, while the Squire and Clear Creek valleys contain rock routes. Three Fingers requires particularly careful planning: difficult road and trail access lead toward a summit lookout reached by ladders ascending exposed rock cliffs. This is not simply an extension of a river walk. Choose objectives to match navigation skills, equipment, and comfort with exposure. Black bears, black-tailed deer, cougars, and mountain goats inhabit the wilderness; give wildlife space and keep food secured.
Access planning and wilderness care
Choose a trailhead for the specific trail rather than treating Boulder River Wilderness as a single entrance. Besides Boulder River Trailhead, access includes Canyon Lake, Eight-Mile, Kelcema Lake, Marten Creek, Neiderprum, Squire Creek, and Meadow Mountain/Saddle Lake trailheads. Confirm current road and trail conditions and any permit requirements with the Darrington Ranger District before departure. Potable water is not available, so carry water or bring a way to treat collected water. Camping is prohibited within 200 feet slope distance of the shorelines of Bandana Lake and Saddle Lake. Campfires are also restricted around those lakes and along part of Three Fingers Trail 641, and are prohibited in Goat Flats. All wilderness trails are closed to pack and saddle stock. Follow wilderness regulations and Leave No Trace practices.
Route options
- Boulder River Trail 734
Follow the wilderness’s main forest-and-waterfall route through old-growth conifers. Feature Show Falls drops directly into the Boulder River just inside the wilderness.
- Canyon Lake Trail 720
A wilderness trail option reached from Canyon Lake Trailhead. Confirm current trail conditions with the ranger district when choosing this approach.
- Squire Creek Trail 654
Enter from Squire Creek Trailhead. Rock-climbing opportunities in the surrounding valley are separate objectives requiring appropriate skills and equipment.
- Three Fingers-Goat Flats-Saddle Lake Trail 641Demanding for the Three Fingers summit-lookout objective, with exposed ladder climbing.
Access from Meadow Mountain/Saddle Lake Trailhead. A summit-lookout objective on Three Fingers involves difficult access and exposed ladders on rock cliffs. Observe camping restrictions at Saddle Lake and campfire restrictions along the trail and at Goat Flats.
Sample itineraries
- Boulder River old-growth and waterfall hike · 1 day
Start at Boulder River Trailhead and follow Boulder River Trail 734 through old-growth Douglas fir, western hemlock, western red cedar and scattered Sitka spruce. Make Feature Show Falls, dropping over a 200-foot cliff directly into the river, the focus of an out-and-back day. Set the turnaround to match conditions and daylight.
- Three Fingers lookout approach · 2 days
For experienced mountain travelers, consider a demanding trip toward the historic Three Fingers lookout via Three Fingers-Goat Flats-Saddle Lake Trail 641. Confirm road and trail access before committing. The summit approach includes exposed ladders and cliffs; two days is not a guarantee of feasibility. Follow Saddle Lake camping setbacks and local campfire prohibitions.
Seasonal conditions
Spring
Elevation-dependent transition
The wilderness rises from low valleys to nearly 7,000 feet, so valley conditions do not establish mountain readiness. Plan for wet forest travel and check snow and ice conditions before choosing higher routes.
Summer
Conditions-dependent mountain travel
Check higher-route conditions rather than assuming summer means snow-free travel. Whitehorse Mountain and Three Fingers have glaciers, and higher peaks offer mixed rock and ice climbing. Rain protection remains appropriate in an area receiving more than 150 inches of precipitation annually.
Fall
Weather-dependent outings
Keep plans flexible around wet weather and shorter daylight. Steep terrain and thick brush make off-trail travel arduous; established trails offer a more manageable choice. Check access and mountain conditions before attempting Three Fingers.
Winter
Wet winter storm periods
These mountains intercept wet North Pacific storms moving through the Straits of Juan de Fuca. Prepare for cold, wet conditions and substantial differences between low valleys and high peaks. Confirm access and choose objectives conservatively.
| Season | Window | Conditions |
|---|---|---|
| Spring | Elevation-dependent transition | The wilderness rises from low valleys to nearly 7,000 feet, so valley conditions do not establish mountain readiness. Plan for wet forest travel and check snow and ice conditions before choosing higher routes. |
| Summer | Conditions-dependent mountain travel | Check higher-route conditions rather than assuming summer means snow-free travel. Whitehorse Mountain and Three Fingers have glaciers, and higher peaks offer mixed rock and ice climbing. Rain protection remains appropriate in an area receiving more than 150 inches of precipitation annually. |
| Fall | Weather-dependent outings | Keep plans flexible around wet weather and shorter daylight. Steep terrain and thick brush make off-trail travel arduous; established trails offer a more manageable choice. Check access and mountain conditions before attempting Three Fingers. |
| Winter | Wet winter storm periods | These mountains intercept wet North Pacific storms moving through the Straits of Juan de Fuca. Prepare for cold, wet conditions and substantial differences between low valleys and high peaks. Confirm access and choose objectives conservatively. |
Permits, fees & closures
Confirm current permit, pass and reservation requirements with the Mount Baker-Snoqualmie National Forest's Darrington Ranger District before traveling.
Official source: Mount Baker-Snoqualmie National Forest | Boulder River Wilderness · Verified October 19, 2026
Hazards & regulations
- Heavy precipitation can leave clothing and equipment soaked. Carry rain protection and keep insulating layers dry.
- Steep terrain and thick brush make off-trail travel arduous. Do not treat map shortcuts as straightforward walking routes.
- Higher peaks involve mixed rock and ice terrain. Match equipment, experience and turnaround decisions to current conditions.
- Three Fingers lookout access includes exposed ladders ascending rock cliffs, with a 4,000-foot cliff behind the lookout. This is not a casual hiking objective.
- Difficult road and trail access complicates Three Fingers trips. Verify the approach before relying on a two-day plan.
- Feature Show Falls drops directly into Boulder River. Keep back from cliff edges and fast-moving water.
What to pack for Boulder River Wilderness
- Waterproof jacket and rain pants
- Insulating layers protected in waterproof bags
- Spare dry socks
- Footwear suited to wet forest trails
- Topographic map covering the chosen route
- Compass and offline navigation
- Headlamp
- First-aid kit
- Emergency shelter
- Drinking water; potable water is not provided
- Water-treatment equipment
- Food and extra snacks
- Wildlife-resistant food storage
- Weather-resistant shelter and sleep system
- Stove for areas where campfires are prohibited
- Route-appropriate rock and ice equipment for technical objectives
Boulder River Wilderness FAQ
- What is a good first visit?
- Boulder River Trail 734 is the wilderness's most popular trail. It combines old-growth forest with Feature Show Falls just inside the wilderness. Start at Boulder River Trailhead and plan an out-and-back suited to current conditions.
- Where are the camping and campfire restrictions?
- Camping is prohibited within 200 feet slope distance of Bandana and Saddle Lake shorelines. Campfires are prohibited within those shoreline setbacks, within a quarter mile of Three Fingers Trail 641 from Saddle Lake, and in Goat Flats. Check current forest restrictions before departure.
- Is Three Fingers lookout an ordinary backpacking destination?
- No. Difficult road and trail access, exposed ladders and major cliffs make it a serious mountain objective. The old fire lookout stands on Three Fingers' South Peak. Confirm conditions and bring the skills and equipment needed for the approach.
- Which other trailheads access the wilderness?
- Access points include Canyon Lake, Eight-Mile, Kelcema Lake, Marten Creek, Neiderprum, Squire Creek and Meadow Mountain/Saddle Lake trailheads. Confirm conditions for the specific trailhead rather than assuming all approaches are accessible.
- Can horses or other pack stock use the trails?
- No. All trails within Boulder River Wilderness are closed to pack and saddle stock because of steep grades, inadequate design, lack of grazing or other factors.
- Are drinking water and restrooms available?
- Potable water is not provided. Carry drinking water and equipment to treat natural water sources. Confirm restroom availability for the chosen access point with the Darrington Ranger District.