West of Castle Rock in the Rampart Range area, the Rainbow Falls OHV Area has miles of forest roads open to ATV riding.
To reach the trailhead from the intersection of US 24 and SR 67 in Woodland Park, go north on SR 67 for 10.7 miles. Turn right on a Forest Road. Westcreek is 4 miles further. After turning on the Forest Road, stay right and park up about 0.3 miles from SR 67.
Note: Colorado residents must register their off-highway vehicle with the Colorado State Parks (303) 866-3437. Out-of-state residents who bring OHVs into Colorado must purchase a Colorado Non-Resident OHV permit which is valid from the date of purchase through the following March 31. These permits can be purchased anywhere you get your hunting/fishing licenses in 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.
Note: As of September 2007, ATV riding on Forest Service roads is limited to designated roads that are signed as open or marked on the forest recreation map. To be safe (and legal), contact the Forest Service HQ to obtain a map at (719) 553-1400.