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Grays Harbor County

Preachers Slough Trail

Moderate

2

hikers

Preachers Slough Trail

02:56

11.5km

40m

Hiking

Hike the Preachers Slough Trail, a 7.1-mile moderate route through the Chehalis River Surge Plain Natural Area Preserve, known for its flat

Last updated: February 26, 2026

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Your route passes through protected areas

Please check local regulations for:

Chehalis River Surge Plain Natural Area Preserve

Waypoints

A

Start point

Parking

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1

4.97 km

Preachers Slough Trail

Highlight (Segment) • Trail

Preacher's Slough Trail at Chehalis River Surge Plain Natural Area Preserve offers a serene escape into nature. The trail winds through lush wetlands, providing opportunities for birdwatching and observing diverse wildlife amidst tranquil, scenic surroundings.

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11.5 km

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Parking

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Way Types & Surfaces

Way Types

11.3 km

134 m

Surfaces

11.3 km

134 m

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Elevation

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Wednesday 20 May

19°C

9°C

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This route was planned by komoot.

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Frequently Asked Questions

Where is the trailhead for Preachers Slough Trail and what are the parking options?

The trail is located near Montesano, Washington, within the Chehalis River Surge Plain Natural Area Preserve. Specific trailhead parking information is usually available at the preserve's entrance or on official park websites. A Discover Pass is required for access to the area.

Is the Preachers Slough Trail dog-friendly?

Yes, the trail is generally dog-friendly. However, always ensure your dog is on a leash and that you clean up after them to protect the sensitive wetland ecosystem and respect other visitors.

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

The trail can be enjoyed year-round. Spring and early summer are excellent for experiencing the 'Renoir palettes of wildflowers' and lush greenery. Fall offers beautiful colors. Be aware that it can be muddy in wet weather, so sturdy footwear is recommended during wetter seasons.

Do I need a permit or pay an entrance fee to access the Chehalis River Surge Plain Natural Area Preserve?

Yes, a Discover Pass is required for access to the Chehalis River Surge Plain Natural Area Preserve, which encompasses the trail. This pass helps support the maintenance and conservation of Washington's state recreation lands.

What is the terrain like on the trail?

The trail is notably flat and generally well-maintained, following an old railroad bed. It consists of dirt and gravel paths, with some boardwalks over small creeks. While easy, sturdy shoes or hiking boots are recommended, especially if it's muddy.

Is the trail suitable for all skill levels or beginners?

Yes, the trail is considered an easy and family-friendly hike, suitable for all skill levels due to its flat terrain and lack of significant elevation gain.

What kind of scenery and wildlife can I expect to see on the trail?

You'll experience diverse scenery, including a verdant forest with moss-draped trees and glimpses of the Chehalis River. The trail traverses a significant wetland, offering opportunities to spot wildlife such as otters, osprey, and bald eagles. Occasional sightings of bear and coyote are also possible.

Are there any notable features or viewpoints along the route?

Yes, the trail features interpretive signs that provide insights into the area's natural systems, salmon habitat, and local history. There are also benches and an observation platform overlooking the river, perfect for breaks, solitude, and wildlife viewing.

How long does it typically take to hike the full Preachers Slough Trail?

The full out-and-back route, which is approximately 11 kilometers (7 miles) to Blue Slough, typically takes around 2 hours and 56 minutes to complete, according to komoot's estimates for a hike.

Is the Preachers Slough Trail a loop or an out-and-back route?

The Preachers Slough Trail is primarily an out-and-back route.

Is the Preachers Slough Trail family-friendly?

Absolutely. Its flat terrain, easy accessibility, and opportunities for wildlife viewing make it an excellent choice for families with children of all ages.

What is the historical significance of the trail's name?

The slough got its name from a Methodist-Episcopal minister in 1859, a detail you can learn more about from the interpretive signs along the route.

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