Northwest of Lake George, there are numerous dirt biking routes in the Lake George, Wilkerson Pass and Puma Hills areas.
Note: the following roads are prohibited to unlicensed vehicles: CR77 (aka Tarryall Road), FS112 (aka FS207 or Happy Meadows Road), CR94 (aka FS200 or Trail Creek Road), and FS211 (aka Matukat).
To reach the dirt biking trailhead from Lake George, head northwest on US24 for 1 mile. Turn right heading northwest on CR77 for 15.5 miles. Turn right into parking area.
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, Lake George / Wilkerson Pass is the 35th most popular dirt bike trail of all 93 dirt biking rides in Colorado.