13:59
35.2km
2,210m
Hiking
Hike the challenging 21.9-mile Duckabush River to Anderson and LaCrosse Pass trail through Olympic Mountains forests and alpine meadows.
Last updated: February 26, 2026
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7.55 km
Highlight • Rest Area
Tip by
28.6 km
La Crosse Pass
Mountain Pass
35.2 km
Highlight • Mountain Pass
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Way Types & Surfaces
Way Types
23.2 km
11.9 km
< 100 m
Surfaces
35.2 km
< 100 m
< 100 m
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This route was planned by komoot.
The trail begins at the Duckabush River Trailhead, which is accessible via a forest road. Parking is available at the trailhead, but it's advisable to arrive early, especially during peak season, as spots can fill up quickly due to the trail's popularity for multi-day trips.
The best time to hike this route is typically from late spring through early fall, generally June to September. During these months, snow has usually melted from the higher passes, and weather conditions are more stable. However, be prepared for potential snow patches even in summer at higher elevations, and always check current conditions before you go.
Yes, permits are required for backcountry camping within Olympic National Park, which this trail traverses. While there isn't an entrance fee for the Olympic National Forest portion, you will need to secure a wilderness permit for any overnight stays in the National Park. It's best to reserve these well in advance, especially for popular dates.
No, dogs are generally not allowed on trails within Olympic National Park, which includes significant portions of this route. This is to protect the park's wildlife and natural resources. Please check the specific regulations for the Olympic National Forest sections if you plan to hike with a dog, but for the full route, it is not dog-friendly.
The terrain is diverse and challenging. You'll start through lush old-growth forests, encountering significant climbs like 'Little Hump' and 'Big Hump,' which involves a 1,000-foot ascent over sometimes loose rock. Beyond that, the trail follows the river with gradual gains, but can be overgrown and muddy. As you approach Anderson Pass and LaCrosse Pass, expect constant, steep uphill climbs, often via switchbacks, with significant elevation gain.
The scenery is spectacular and changes dramatically as you gain elevation. Initially, you'll be in impressive old-growth river valleys. As you ascend, the forest gives way to beautiful sub-alpine meadows, offering panoramic views of snow-capped peaks like Mount Steel, Mount Duckabush, and White Mountain. You'll also pass stunning alpine lakes such as Marmot Lake, Hart Lake, and Lake LaCrosse. Don't miss the views from Anderson Pass.
Hikers frequently encounter numerous downed trees (blowdowns) that require scrambling over, under, or around, sometimes necessitating pack removal. Overgrown sections are common, particularly beyond Five Mile Camp and closer to the passes, which can slow navigation. Muddy spots are prevalent, and some parts of the trail can have sketchy footing, especially on steep, eroded slopes.
This route is primarily undertaken as a multi-night backpacking trip due to its length (over 35 km) and significant elevation gain (over 2200m). While the direct route to Anderson Pass and LaCrosse Pass is often an out-and-back, it also serves as a gateway to a network of trails within Olympic National Park, allowing for extended multi-night loops that can include O'Neil Pass, Marmot Lake, and the West Fork Dosewallips River.
The trail offers opportunities to see a variety of wildlife. Common sightings include elk and bears, especially in the more remote sections and sub-alpine meadows. Keep an eye out for smaller mammals and various bird species as well. Always practice Leave No Trace principles and maintain a safe distance from all wildlife.
Yes, this route is part of a larger network of trails. Significant portions follow the Duckabush River Trail and the Duckabush Trail #803. As you ascend, you'll also traverse sections of the LaCrosse Pass Trail. For those looking to extend their trip, it also connects to the West Fork Dosewallips River Trail and the Anderson Moraine Primitive Trail, allowing for diverse backpacking loops.
The Brothers Wilderness, where this trail is located, is a remote and rugged area. Be prepared for self-sufficiency, as services are non-existent. Always practice Leave No Trace principles, pack out everything you pack in, and be mindful of wildlife. The wilderness designation means trails may be less maintained than in other areas, contributing to the challenging nature of the hike.