North of Denver near Berthoud, the Valley Dirt Riders has several tracks including 2 competition motocross tracks, a supercross track and a peewee track for 50cc.
To reach the dirt biking at the Valley Dirt Riders is located 60 miles north of Denver, CO. Take I-25 to the Berthoud exit (exit 250), go east to the service road. Go south on service 1/2 mile, turn right and go under bridge to track. The track is located west of I-25.
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, Valley Dirt Riders is the 58th most popular dirt bike trail of all 93 dirt biking rides in Colorado.