1
hikers
08:09
26.3km
1,420m
Hiking
Hike the difficult 16.3-mile West Fork Dosewallips River Trail in Olympic National Park, gaining 4650 feet to Anderson Pass.
Last updated: February 26, 2026
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3.66 km
Highlight • River
Tip by
3.73 km
Highlight • Forest
16.6 km
Highlight • Rest Area
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20.3 km
Highlight • Rest Area
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23.7 km
Highlight • Rest Area
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26.3 km
Highlight • Mountain Pass
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Way Types & Surfaces
Way Types
17.6 km
8.66 km
< 100 m
Surfaces
14.4 km
6.44 km
5.49 km
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Monday 11 May
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This route was planned by komoot.
Accessing the official trailhead requires navigating a significant challenge: the Dosewallips Road is washed out for 6.5 miles before the trailhead. This means you'll need to either walk or bike this initial stretch, adding considerable distance and effort to your overall trip. Plan accordingly for this extra mileage before you even reach the start of the actual trail.
This trail is consistently rated as difficult. The primary reasons for its strenuousness include its length (over 16 miles), significant elevation gain (over 4,600 feet), and the mandatory 6.5-mile road walk to reach the trailhead. It's best suited for experienced hikers.
The trail offers a diverse and challenging terrain. You'll start in montane forests, transitioning through old-growth and second-growth sections, often accompanied by the sounds of the Dosewallips River. Expect river valleys, areas of gradual ascent, and distinct steep climbs as you head towards subalpine meadows. There are several river crossings, some with footlogs or bridges, though one footbridge above Diamond Meadows Backcountry Campsite is currently out. Crossing the West Fork at Honeymoon Meadows Camp can be hazardous, especially in spring or after heavy rains.
You'll encounter stunning natural beauty, including moss-carpeted forests, spectacular river views, and glimpses of cascades. In late spring and early summer, the trail bursts with wildflowers like rhododendrons, bear grass, and salal. As you gain elevation, you'll reach beautiful mountain meadows encircled by rocky peaks. For those who venture further, the trail offers views of glaciers, most notably Anderson Glacier, and leads towards Anderson Pass.
No, dogs are generally not permitted on trails within Olympic National Park, including the West Fork Dosewallips River Trail. This is to protect wildlife and natural resources. Please check the official Olympic National Park website for specific regulations regarding pets.
Yes, as this trail is located within Dosewallips Area, Olympic National Park, an entrance fee is required. Additionally, if you plan on backpacking and staying overnight at any of the backcountry campsites like Big Timber Backcountry Campsite or Diamond Meadows Backcountry Campsite, you will need a wilderness permit. It's crucial to obtain these in advance, especially during peak season. You can find detailed information on fees and permits on the official NPS website.
The best time to hike is typically from late spring through early fall (June to October) when snow has melted at higher elevations and wildflowers are in bloom. Winter traversing is considered extremely difficult and is only recommended for advanced backpackers with specialized skills due to snow and ice conditions.
Absolutely! The trail provides access to several backcountry campsites, making it ideal for multi-day excursions. Notable campsites include Dose Forks, Big Timber Backcountry Campsite, Diamond Meadows Backcountry Campsite, and Honeymoon Meadows Camp. These allow hikers to extend their journey towards destinations like Anderson Pass and Anderson Glacier.
The remote nature of this trail increases your chances of spotting wildlife. Keep an eye out for elk and black bears, which are known to frequent the area. Always practice Leave No Trace principles and know how to react if you encounter wildlife.
Yes, the route primarily follows the West Fork Dosewallips River Trail. However, sections of the journey also pass through parts of the Dosewallips River Road and the Dosewallips River Trail. For those venturing further, it can connect to the LaCrosse Pass Trail.
Given its significant length, elevation gain, and the mandatory 6.5-mile road walk to reach the trailhead, this trail is not recommended for beginner hikers. It requires a good level of fitness, experience with challenging terrain, and preparedness for backcountry conditions.