From Tonasket take Okanogan County Road 9437 (Hwy 7) north for about 5.5 miles to County Road 9425. Take County Road 9425 for 12 miles to Loomis. From Loomis continue on County Road 9425 for 2 miles to County Road 4066. Turn left on County Road 4066, which becomes Forest Service Road 39, and travel for 20 miles to Long Swamp Campground, bear right on Forest Service Road 39-300 for 3 miles to Chewuch Trailhead.
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