About Conundrum Hot Springs
Two natural pools at 11,200 feet in the Maroon Bells-Snowmass Wilderness, surrounded by Elk Mountain peaks topping 14,000 feet. The larger pool is about 15 feet across and 3 feet deep with a rock and sand bottom; the smaller one runs slightly warmer. Water temps sit between 100 and 108°F. The alpine basin fills with wildflowers in summer and gold aspens in September.
Directions to Conundrum Hot Springs
39.1192, -106.8561
From Aspen, head south on Castle Creek Road for about 5 miles, then right onto Conundrum Creek Road (FR 128) for 1 mile to the trailhead. Parking fills early in peak season. Follow Conundrum Creek Trail (Trail 1981) 8.5 miles upstream, gaining 2,500 feet, with several creek crossings (difficult during June-July runoff). Overnight permit required via Recreation.gov. From Denver, take I-70 west to Glenwood Springs, then Highway 82 south to Aspen (3.5-4 hours; Independence Pass closed in winter).
Best Time to Visit
Mid-July through mid-September. Snow covers the upper trail earlier in summer, and creek crossings run dangerously high from snowmelt. The trail is generally inaccessible November through May.
Tips
- ✓Reserve overnight permits early on Recreation.gov. Peak summer weekends sell out fast.
- ✓Acclimatize before hiking; Aspen is at 7,900 feet and the springs are at 11,200 feet.
- ✓Bear canisters are required for all food storage on overnight trips.
- ✓WAG bags required for human waste; campfires prohibited in the basin.
- ✓Start early to clear treeline before afternoon thunderstorms, which are common July-August.
- ✓Creek crossings run high during June-July runoff; bring trekking poles and water shoes.
- ✓Bring warm layers and a cold-rated sleeping bag. Nighttime temps drop below freezing even in summer.
- ✓Day hiking the 17-mile round trip is possible but punishing at altitude; most people camp.