National Forest Development Road 306 is a hiking, biking, and horse trail in Pend Oreille County, Washington. It is within Colville National Forest and Idaho Panhandle National Forests. It is 8.0 miles long and begins at 4,422 feet altitude. Traveling the entire trail is 16.1 miles with a total elevation gain of 2,544 feet. The trail ends near North Baldy (elevation 6,135 feet).
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