Parking
Park at Ross Dam Trailhead, walk 0.7 mile to Ross Lake Resort, and take its water taxi to Little Beaver Dock. There is no shoreline trail to the dock; confirm current boat service before setting out.

North Cascades National Park, WA
A long valley trail climbs to a rugged backcountry pass.
Overview
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
North Cascades Tour Guide
Parkwolf is a GPS audio tour guide for North Cascades National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
See the North Cascades audio tourMore stories near here in the app
Trail guide
Little Beaver Trail is a remote out-and-back from Ross Lake’s Little Beaver Dock to Whatcom Pass. The path to the pass is about 16.2 miles one way, so retracing it makes a 32.4-mile round trip. Allow about 22 hours of hiking time, normally split across several days; this is a backcountry trip, not a day hike. Whatcom Camp lies beyond the pass if you want to extend the walk.
From the dock, the trail climbs through cedar and fir forest beside Little Beaver Creek, with brushy meadows and several creek crossings along the way. Perry Creek Camp is about 4.6 miles in. Roughly 5.8 miles farther, the Big Beaver Trail branches south; stay on Little Beaver as it continues west. Twin Rocks Camp is about 3.6 miles beyond that junction. Past Twin Rocks, the climb steepens and brush can hide the tread before switchbacks rise toward the pass.
Near the last climb, waterfalls run down cliffs to the south, with Mount Challenger and Whatcom Peak on the skyline. At Whatcom Pass, the view opens onto the jagged North Cascades, including Whatcom and Easy Peaks. For a photo, frame the deep forested valley between the pass’s steep rocky sides; the valley looks much deeper with the ridges in the shot.
Wildlife
101 sightingsMountain GoatMost seen around 6 PMSighting map
70 sightingsBlack BearMost seen around 8 PMSighting map
20 sightingsMule DeerMost seen around 7 PMSighting map
77 sightingsSooty GrouseMost seen around 6 AMSighting map
23 sightingsWhite-tailed PtarmiganMost seen around 6 PMSighting map
75 sightingsWestern ToadMost seen around 8 PMSighting mapSighting maps show where each species has been reported across North Cascades. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ChallengingDesolation Peak Trail9.4 mi · 7.5 hr · 1.9 mi awayA steep climb to Kerouac’s historic fire lookout
ChallengingLightning Creek Trail to Willow Lake8 mi · 6 hr · 3.6 mi awayA steep climb opens into the quiet Lightning Creek valley.
ModerateHozomeen Lake Trail7.2 mi · 4 hr · 4.9 mi awayA remote lake walk beneath peaks named for their sharp edges.
ModerateTrail of the Obelisk0.8 mi · 36 min · 5.9 mi awayA short loop with forest, talus slopes and abandoned beaver ponds.
EasyHappy Creek Forest Walk0.3 mi · 15 min · 12.9 mi awayA short boardwalk loop beside Happy Creek and old-growth trees.
ModerateHappy Creek Falls Trail2.6 mi · 2.5 hr · 12.9 mi awayOld sawmill relics and stepped falls reward a steep creekside climb.
ModerateRoss Dam Trail2.5 mi · 2 hr · 13 mi awayWalk through forest to Ross Dam, then climb back to SR 20.
ChallengingBig Beaver Trail24.6 mi · 18 hr · 13 mi awayA long valley traverse past ancient cedars and beaver marshes.
Campground · 0.1 mi awayLittle Beaver Boat CampA quiet boat-in base on Ross Lake.
Campground · 1.5 mi awayBoundary Bay CampA boat-in night beside Ross Lake's wooded shore.
Sight · 2.7 mi awayDesolation Peak LookoutKerouac’s 1956 lookout crowns a steep climb above Ross Lake.
Campground · 2.8 mi awayCat Island CampFour boat-in sites on a quiet island in Ross Lake.
Campground · 3.6 mi awayLightning Creek Boat CampFive campsites on Ross Lake, reached by boat or trail.
Campground · 3.9 mi awayLightning Creek Stock CampA two-site Ross Lake camp reached by boat or a long hike.
Campground · 4 mi awaySilver Creek CampA remote dockside camp for a night on Ross Lake.
Campground · 4.4 mi awayLodgepole CampA remote Ross Lake camp reached by boat, with trail access.Parkwolf’s North Cascades ranking