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Routes
Hiking trails & Routes
United States
Washington
King County

Tiger Mountain, Preston Railroad, Silent Swamp, and Northwest Timber Loop

Routes
Hiking trails & Routes
United States
Washington
King County

Tiger Mountain, Preston Railroad, Silent Swamp, and Northwest Timber Loop

Moderate

4.5

(2763)

16,235

hikers

Tiger Mountain, Preston Railroad, Silent Swamp, and Northwest Timber Loop

04:48

16.1km

490m

Hiking

The Tiger Mountain, Preston Railroad, Silent Swamp, and Northwest Timber Loop is a moderate hiking route covering 10.0 miles (16.1 km) in Tiger Mountain State Forest. You will gain 1618 feet (493 metres) in elevation over an estimated 4 hours and 48 minutes. This loop offers a comprehensive tour through…

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

West Tiger Mountain Natural Resource Conservation Area

Tiger Mountain State Forest

Waypoints

A

Start point

Parking

Get Directions

1

3.51 km

Main Tiger Mountain Road

Highlight (Segment) • Trail

The trail is used by hikers, mountain bikers and as a logging road. Check in advance if the trail is closed because of woodworking.

Tip by

2

10.6 km

Silent Swamp Trail

Highlight • Trail

Very nice and easy path. If you decide to shorten via one of the MTB trails: Not all the bike trails allow hikers, and on the ones that do, bikers always have the right of way.

Tip by

B

16.1 km

End point

Parking

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Way Types & Surfaces

Way Types

15.1 km

993 m

Surfaces

14.5 km

791 m

748 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 (790 m)

Lowest point (410 m)

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Weather

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Today

Wednesday 27 May

22°C

9°C

0 %

Additional weather tips

Max wind speed: 16.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the Tiger Mountain, Preston Railroad, Silent Swamp, and Northwest Timber Loop?

The trail is typically accessed from the Tiger Summit Trailhead, which is conveniently located off Highway 18. This trailhead provides straightforward access to the various segments of the loop.

Do I need a permit or pass to hike this trail?

Yes, as this trail is located within Tiger Mountain State Forest, a Discover Pass is required for parking at the trailhead. You can purchase a Discover Pass online or at various retail locations.

Is the trail dog-friendly?

Yes, dogs are generally allowed on the trails within Tiger Mountain State Forest. Please ensure your dog is kept on a leash at all times and that you pack out any waste to help keep the trails clean for everyone.

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

The trail can be enjoyed year-round, but spring and fall offer pleasant temperatures and lush scenery. Be aware that after heavy rains, especially on the Preston Railroad Grade, you can expect wet conditions and muddy sections. Some small streams on the Northwest Timber Trail may be dry in late summer.

What is the terrain like on this loop?

The loop offers diverse terrain. The Silent Swamp Trail is known for its very green, mossy environment with some steep, stony switchbacks. The Preston Railroad Grade features roots, rocks, and some technical sections, while the Northwest Timber Trail is generally a mellow singletrack with bridge crossings and some replanted logging areas.

Is this trail suitable for beginners?

The overall loop is considered moderate due to its length and varied terrain. While sections like the Northwest Timber Trail are rated easy for hiking, the Silent Swamp Trail has steep switchbacks, and the Preston Railroad Grade can be technical. Hikers with some experience will find it more enjoyable, but beginners can tackle it with proper preparation.

What are some notable features or sights along the way?

You'll encounter exceptionally green and mossy surroundings throughout. The Silent Swamp Trail features impressive moss cover and gigantic, decaying stumps from a century of logging. The Northwest Timber Trail has pretty views and several bridge crossings, and you might spot a newly constructed boardwalk on the Silent Swamp section.

Does this loop connect with other trails in the area?

Yes, this route combines several trails and intersects with others. It includes significant portions of the Preston Railroad Grade, Silent Swamp Trail, and Northwest Timber Trail. The Northwest Timber Trail also acts as a gateway to more distant goals on Tiger Mountain, including forest roads leading to the summit of East Tiger.

What should I know about trail etiquette or specific conditions on this loop?

Many segments of this loop are multi-use, shared by hikers, mountain bikers, and sometimes equestrians. Always be aware of other users and practice courtesy. The Preston Railroad Grade can be particularly wet after rain due to springs, so appropriate footwear is recommended. Also, the decaying stumps on the Silent Swamp Trail are a unique historical feature.

Are there any historical elements to look out for on the trail?

Yes, the trail offers a glimpse into the area's past. The Silent Swamp Trail, in particular, is notable for its numerous gigantic, decaying stumps, which are dramatic and colorful remnants of logging operations from a century ago.

What kind of wildlife might I encounter on this hike?

While specific sightings are never guaranteed, Tiger Mountain State Forest is home to various wildlife. You might spot deer, small mammals, and a variety of bird species. Keep an eye out for signs of wildlife, especially in the quieter, mossier sections of the trail.

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