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Boulder Creek - Gallagher Head Lake

Snoqualmie Region


Snoqualmie Region -- Salmon La Sac/Teanaway
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9.0 miles, roundtrip


Gain: 2100 ft.
Highest Point: 5606 ft.


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Parking Pass/Entry Fee


If you're looking for an excellent place to backpack then look no further. With camps in both the upper De Roux basin and at Gallagher Head Lake you'll be spoiled for choice on where to set up your tent. With peak views and access to Gallagher Head Lake, you'll get a nice peek into the Teanaway and the beauty it offer but the elevation gain can be a challenge on this rocky trail. This route also offers access to the Esmeralda Basin Trail, which is a popular day hiking loop if you're looking for further adventure on your trip.


Boulder Creek - Gallagher Head Lake

Map & Directions

Co-ordinates: 47.4558, -121.0485 Open map in new window


Snoqualmie Region -- Salmon La Sac/Teanaway

Boulder De Roux Trail (#1392)

Okanogan-Wenatchee National Forest, Cle Elum Ranger District

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Guidebooks & Maps

Day Hiking: Snoqualmie Pass ed. II (Nelson and Bauer - Mountaineers Books)

Green Trails Kachess Lake No. 208 and Mount Stuart No. 209

Getting There

This trail has two access points to pick from.

Eastern: Roughly 6 miles east of Cle Elum, head east on Highway 970 and exit onto the Teanaway Road. Continue until the pavement ends, then take a right on FS Road 9737, then a left on road 9737-120 to De Roux Campground where you'll find the trailhead.

Western: From Cle Elum continue on Highway 903 north to Salmon La Sac. Turn right onto Fish Lake Road 4330. Continue for roughly 7 miles before turning right on road 138, then another right on road 140. Follow road 140 to its end and the trailhead.

Parking Pass/Entry Fee


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Boulder Creek - Gallagher Head Lake

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