Sugerloaf Loop

Closest Major City: Boulder

Distance: 15.50 miles (24.94 KM)

Description:
From the Switzerland Trail parking lot, take the left-hand road with a sign pointing to Glacier Lake. Follow this road, staying on it at all junctions, to its end at the Peak to Peak Hwy. (Hwy. 72). Carefully cross the highway and join the dirt road on the other side (CR 103). Descend 3 miles to its end back at the Peak to Peak Hwy. Turn right on the highway, ride 0.1 miles and take your first left on the Sugarloaf Road (BC 122). Climb, descend and climb again until you intersect Sugar Mountain Road, soon after the road turns from dirt to asphalt. Turn left and climb steeply for one mile back to the start.

Directions to the trail:
From Canyon and Broadway in Boulder, drive 5.4 miles west on Canyon (Hwy. 119) toward Nederland. Shortly after passing through a tunnel, turn right on Sugarloaf Road (5.4 miles from Boulder) and go five miles to Sugar Mountain Road. Turn right and continue 0.9 miles to the trailhead parking.