Grand Lake-Stillwater Pass Trails For ATV Riding

North of Granby and northwest of Grand Lake in the Arapaho National Forest, the Stillwater Pass and Grand Lake Trail Systems offer dozens of miles of roads for ATV riders to explore. The two main trailheads includ the Idleglen Trailhead and the Supply Creek Trailhead. Make sure to call the Forest Service ahead of time to confirm that the trailhead is open. The best Stillwater Pass ATV riding is normally found on summer weekdays since weekends can be extremely crowded.

To reach the ATV riding trailhead for Grand Lake from Granby, head north on SR34 towards Grand Lake for 8.7 miles. Turn left heading northwest on CR4 for 2.9 miles. Veer left on Stillwater Pass Road for 0.5 miles to the large Idleglen Staging Area trailhead parking area on the left.

PRO TIP: In Colorado, all-terrain vehicles must display a current Colorado OHV Permit per the Colorado Off-Highway Vehicle Program. Forest Service roads must be signed as open to ATV riding, otherwise it is prohibited. The ATV must operate under the legal sound limit of 96dBA. All off-highway vehicles must have an approved muffler and spark arrester. OHV operators between the ages of 10 and 16 must be accompanied by and under the immediate supervision (within direct visual contact) of a person with a valid driver's license.

Overall, Grand Lake-Stillwater Pass Trails is the 4th most popular ATV riding trail of all 70 ATV trails in Colorado.