Anderson Lake and Tamanowas Rock Loop
Anderson Lake and Tamanowas Rock Loop
5.0
(1539)
18,465
hikers
01:40
5.89km
130m
Hiking
Embark on an easy hike through the Anderson Lake and Tamanowas Rock Loop, a route that guides you through a varied landscape of second-growth forests, wetlands, and open fields. This loop covers 3.7 miles (5.9 km) with a gentle elevation gain of 416 feet (127 metres), making it a pleasant…
Last updated: April 23, 2026
Waypoints
Start point
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720 m
Highlight • Lake
Tip by
2.51 km
Highlight • Natural Monument
Tip by
5.89 km
End point
Way Types & Surfaces
Way Types
4.64 km
1.25 km
Surfaces
4.64 km
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Elevation
Highest point (140 m)
Lowest point (80 m)
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Sunday 24 May
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This route was planned by komoot.
Yes, this loop is generally considered an easy hike, making it suitable for most fitness levels and families. While the path becomes steeper and narrower as you approach Tamanowas Rock Sanctuary, the overall experience is manageable.
The primary highlights include the serene Anderson Lake State Park, with its diverse forest and wetlands, and the striking Tamanowas Rock Sanctuary. From the top of Tamanowas Rock, you can enjoy panoramic views of the Chimacum Valley.
Tamanowas Rock is notable for both its geological history and profound cultural importance. Geologically, it's the remnant of an explosive volcano from 43 million years ago, composed of unusual adakite lava. Culturally, it's a sacred site for the Coast Salish peoples, particularly the S'Klallam Tribe, used for spiritual vision quests and as a refuge for over 10,000 years. The S'Klallam Tribe now manages the Tamanowas Rock Sanctuary, and visitors are asked to respect its sacred status.
The terrain around Anderson Lake State Park features glacial till and erratics. While trails within the park are generally well-maintained, some sections outside park boundaries may be less so. You might encounter a unique 'linear crack' on the ridge crest near Tamanowas Rock that the trail descends into.
Parking is available at Anderson Lake State Park. Specific trailhead parking information can usually be found on the park's official website or local signage.
Yes, as this trail is located within Anderson Lake State Park, a Discover Pass is typically required for vehicle access. You can purchase this pass online or at various vendors. Check the Washington State Parks website for current fee information and regulations.
Dogs are generally allowed on trails within Anderson Lake State Park, but they must be kept on a leash. Please be mindful of signage, especially around the Tamanowas Rock Sanctuary, and always pack out pet waste.
The loop can be enjoyed year-round. Spring offers lush greenery and wildflowers, while fall brings vibrant foliage. Summer is popular for warmer weather, and winter can provide a peaceful, less crowded experience, though some sections might be muddy or slippery.
Yes, the route also passes through sections of the San Juan Trail, Cascade Trail, Anderson Trail, and Tamanowas Trail, offering opportunities to explore further if desired.
The diverse landscape includes second-growth trees like Douglas fir, grand fir, red alder, big leaf maple, and Western red cedar. The undergrowth features salal, ocean spray, willow, and sedges. Keep an eye out for various bird species, small mammals, and potentially deer in the forested and wetland areas.
Hikers typically complete this approximately 5.9-kilometer (3.7-mile) loop in about 1 hour and 40 minutes, depending on pace and time spent enjoying the viewpoints.