Southeast of Winter Park, the Apex / Kingston Peak Road (FS353) is a 25 mile route open to off-road motorcycle trails riding. The road crosses an above treeline bench at 12,000 feet with great vistas of James Peak and Longs Peak. There are some steep rocky sections.
From the north, take CO 119 south of Nederland to County Road 16 (East Portal Road) west to County Road 4N (Mammoth Gulch Road) south, then one mile past FDR 176 (Mammoth Gulch). Trailhead parking is at the intersection of FDR 176 and CR 4N. Turn onto 176 and park there.
From the south take County Road 4 (Apex Road), from CO 119 near Clear Falls, two miles north of Blackhawk. The Kingston Peak road also connects to Alice on the Fall River road, County Road 275.
Note: Colorado residents must register their off-highway vehicle with the Colorado State Parks (303) 866-3437. Non-residents are not required to register in Colorado, if they are registered in their home states. All off-highway vehicles must have an approved muffler and spark arrester. These requirements are subject to change so make sure to contact the Colorado State Parks prior to using your off-highway vehicle.
Overall, Apex / Kingston Peak Road is the 13th most popular dirt bike trail of all 93 dirt biking rides in Colorado.