Southwest of Aspen, the Conundrum Creek Trail is a 10 mile route leading past the popular Conundrum Hot Springs on the way up to Triangle Pass. The trail starts at 8,770 feet at the trailhead and climbs, slowly at first, to 12,990 feet at the pass. Beyond the pass, a difficult to follow trail continues down the other side through a loose, rocky scree field dropping 1,500 feet over 2 miles to Copper Lakes. At Copper Lakes, the route meets the Copper Creek Trail which leads west another 5 miles to the Judd Falls Trailhead near the Gothic townsite.
To reach the hiking trailhead from Aspen, head west on SR82 to the roundabout. Head southeast on Castle Creek Road (CR15) towards Ashcroft. After 5 miles, turn right heading southwest on Conundrum Creek Road (CR15B) for 1.5 miles to the end where the trailhead is located.
Overall, Conundrum Creek Trail is the 49th most popular hiking trail of all 72 hikes in Colorado.