Cooper River Trail #1311

Area Status: Open
This area is Open

The trail begins at the Salmon La Sac Trailhead and travels along the river to Forest Road 4616 near Cooper Lake.

SETTING: River valley, old-growth forest.

Though generally a gentle grade, this trail has many up and downhill stretches as it runs through the oldgrowth forest along the river. This trail is a good day hike especially with road access at either end.

At a Glance

Fees $5/Vehicle/day or Northwest Forest Pass required at the Salmon La Sac trailhead.
Open Season: early summer - late fall
Best Season: summer
Busiest Season: summer
Restrictions: No motorized vehicles permitted on the trail.
Closest Towns: Cle Elum/Roslyn
Passes: $5/Vehicle/day or Northwest Forest Pass required at the Salmon La Sac trailhead.

General Information


From Cle Elum and/or Roslyn, take State Highway 903 north to Salmon La Sac, then turn left on Forest Road 4316 and take spur Road 111 to the Salmon La Sac Trailhead. This is also the trailhead for Waptus River Trail 1310 and Polallie Ridge Trail 1309.


Parking, toilets, hitch rails, and stock ramps at the Salmon La Sac trailhead.



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Mountain Biking

This trail has many short ups and downs but is generally rideable.  A loop can be formed with the Cooper River Road, FS Road 46 to FS Road 4616, by riding upstream on the road and downstream on the trail.

Difficulty Level: Intermediate


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Horse Riding & Camping

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