Six-Mile Creek Trail
From the intersection of the South Bay Trail and the Six-Mile Creek Trail, turn right/north and hike toward the lake for 0.1 miles. Here you will find the intersection with the Olmstead Pond trail and a trail register (please sign in). Turn left/west and follow this yellow-marked trail counter-clockwise around Olmstead Pond, passing a couple nice tent sites and a lean-to campsite. When you rejoin the Six-Mile Creek Trail, turn right/south and follow this blue-marked trail for 2.4 miles to Cowhorn Pond.
At Cowhorn Pond, a yellow-marked spur trail turns left and leads to an excellent lean-to campsite. Once back on the blue-marked Six-Mile Creek Trail, continue straight past the pond and up the hill to Cowhorn Junction. Total distance from South Bay Trail to Cowhorn Junction is 5.5 miles.
Download full map here