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Hiking trails & Routes
United States
California
Humboldt County

West Ridge and Karl Knapp Trail Loop

Moderate

2.8

(2)

21

hikers

West Ridge and Karl Knapp Trail Loop

04:34

15.4km

400m

Hiking

Hike the moderate 9.6-mile West Ridge and Karl Knapp Trail Loop through ancient redwoods in Prairie Creek Redwoods State Park.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Waypoints

A

Walk through tree

Highlight • Natural Monument

a tight fit, but its really cool to see the inside of the huge tree trunk

Tip by

1

332 m

Some very nice trees are near the visitor center!

Tip by

2

2.84 km

Corkscrew Tree

Highlight • Natural Monument

A fascinating phenomenon, there is easy access very close to the main road parking area

Tip by

3

7.55 km

Prairie Creek Redwoods State Park is in Humboldt County, California, about 50 miles north of Eureka. This amazing coastal forest spans 14,000 acres, safeguarding ancient coast redwood trees. Co-managed by …

Tip by

B

15.4 km

End point

Parking

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Way Types & Surfaces

Way Types

15.1 km

233 m

< 100 m

Surfaces

14.9 km

218 m

141 m

125 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (250 m)

Lowest point (50 m)

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Weather

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Today

Wednesday 8 July

17°C

11°C

0 %

Additional weather tips

Max wind speed: 9.0 km/h

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Frequently Asked Questions

How long does it typically take to hike the West Ridge and Karl Knapp Trail Loop?

This 5.5-mile (8.8 km) loop trail usually takes around 2 hours and 30 minutes to complete, depending on your pace and how often you stop to enjoy the scenery.

What is the terrain like on the West Ridge and Karl Knapp Trail Loop?

The trail offers diverse terrain. The West Ridge section involves gradual ascents and undulating ground, with some rugged parts due to exposed tree roots and occasional steep sections. The Karl Knapp Trail, in contrast, is largely level as it follows Prairie Creek. Be prepared for potential stream crossings that might require wading during winter months when a seasonal footbridge is removed.

Are there any notable features or highlights along the route?

Yes, the loop is renowned for its immersive journey through old-growth redwood forests. You'll encounter magnificent 'monster redwoods' and the distinctive Corkscrew Tree. Other highlights include the Walk through tree and the Giant Redwoods on the Prairie Creek Trail. The trail also provides picturesque views alongside Prairie Creek and tranquil ridgetop moments with the faint sound of the ocean.

What is the best time of year to hike this trail?

The trail can be enjoyed year-round, but conditions vary. During winter, be prepared for potential stream crossings that may require wading as a seasonal footbridge is removed. For the most comfortable hiking experience, consider visiting during drier months.

Is the West Ridge and Karl Knapp Trail Loop dog-friendly?

No, dogs are generally not allowed on trails within Prairie Creek Redwoods State Park, including the West Ridge and Karl Knapp Trail Loop, to protect wildlife and natural resources. Always check current park regulations before bringing pets.

Do I need a permit or is there an entrance fee for Prairie Creek Redwoods State Park?

Prairie Creek Redwoods State Park is part of the Redwood National and State Parks system. While there isn't a specific permit required for hiking this trail, there may be day-use fees or parking fees depending on where you access the park. For the most up-to-date information on fees and regulations, it's best to check the official park website: nps.gov.

Where can I park to access the West Ridge and Karl Knapp Trail Loop?

Parking is typically available at designated trailheads within Prairie Creek Redwoods State Park. Specific parking areas for this loop would be near the start of the West Ridge Trail or Karl Knapp Trail. Always check park signage for current parking regulations and availability.

Does the trail intersect with other paths?

Yes, the route incorporates sections of several official trails. You will hike along parts of the West Ridge Trail, James Irvine Trail, and Rhododendron Trail as you complete the loop.

Is this trail suitable for families with children?

The trail is rated as moderate due to some rugged sections, exposed tree roots, and elevation changes. While older children who are experienced hikers might enjoy it, younger children or those unaccustomed to hiking might find it challenging. The Karl Knapp Trail section, being largely level, could be more suitable for families looking for a less strenuous walk.

What kind of wildlife might I see on the trail?

As the trail winds through old-growth redwood forests and along Prairie Creek, you might encounter various wildlife. Keep an eye out for Roosevelt elk, which are common in the park, as well as various bird species and smaller forest animals. Remember to observe wildlife from a respectful distance.

What should I bring for a hike on this loop?

For a moderate hike like this, it's advisable to bring plenty of water, snacks, sturdy hiking boots, and layers of clothing as weather can change. Trekking poles can be helpful for the steeper or rugged sections. Don't forget a map or GPS device, and a camera to capture the stunning redwood scenery.

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