Demoralizing seems the best way to describe the 2,000-foot climb up the King Castle Trail. The McKenzie River Trail is easily the most popular trail among mountain bikers in the area, while the King Castle Trail is lesser-known — perhaps because of the steepness of the 6-mile climb. The trail, usually enjoyed as an out-and-back ride, runs about 12 miles to the top of Castle Rock and back. The summit of Castle Rock features sprawling views of the McKenzie River Valley. The swooping descent includes numerous switchbacks. The trail should remain ridable through the fall.

Directions: From Bend, take U.S. Highway 20 west over Santiam Pass, following the signs to Eugene and continuing along state Highway 126. About 2 miles after the McKenzie River Ranger Station, near the town of McKenzie Bridge, turn left on Horse Creek Road. Follow that road for 1.3 miles before turning right on King Road. Continue on King Road for 4 miles, then look for the trailhead on the left (trailhead sign is facing the opposite way). The King Castle Trail leads to the Castle Rock Trail and to the summit of Castle Rock. For an easier climb, bikers can ride Forest Road 480 up to the Castle Rock Trail.

Length: About 12 miles out and back

Rating: Aerobically strenuous and technically intermediate

— Mark Morical, The Bulletin