Map & Directions
From Seattle, take I-90 east to exit 80. At the end of the exit ramp, turn left onto Bullfrog Road to cross over the highway. At the second roundabout, continue onto WA-903 North to Salmon La Sac. Continue on WA-903 North passing through the towns of Roslyn and Ronald until the road becomes Salmon la Sac Road. A few yards past the Ranger Station, keep right on a rough dirt road (Forest Road 4330). Drive approximately 12 miles to the end of the road and the Cathedral Rock trailhead.