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Maroon Bells-Snowmass Wilderness · Colorado
Natural hot springs at 11,200 ft in the Maroon Bells-Snowmass Wilderness—one of Colorado's most popular and competitive backcountry destinations.
70% of the openings our scanner caught on Conundrum Hot Springs were gone within 10 minutes.
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No permit needed to start
July through September, which the Forest Service names as the best time to visit the wilderness generally. From early October to late June the campsites and trails are snow covered, avalanche hazards exist, and the trailhead may be inaccessible.
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Permits typically release on a rolling basis. Check the specific release time for your desired dates.
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Snow covered into late June, with the upper valley holding drifts long after the trailhead melts out.
Fitness and endurance required
Climbing, scrambling, or specialized skills
Steep dropoffs and fall potential
Route finding and trail clarity
Difficulty of bailing out mid-route
Backpackers who can cover 8.5 miles with a full pack and camp comfortably above 11,000 feet.
One prior overnight backpacking trip is enough. The trail is straightforward; the distance and the elevation are the work.
Anyone unacclimatized to altitude, and anyone expecting a short walk to a roadside hot spring.
Conundrum Hot Springs sits at about 11,200 feet in the Maroon Bells-Snowmass Wilderness, roughly 8.5 miles up the Conundrum Creek valley. Overnight permits are required and come only from Recreation.gov.
Unlike the Four Pass Loop zones, Conundrum is booked by numbered campsite. There are 20 of them, and the Forest Service rule is explicit: permit holders "must camp in their reserved zone each night, or at their reserved campsite at Conundrum Hot Springs, Crater Lake, and Capitol Lake." Each site carries its own group-size cap - nine sites take a maximum of two people, nine take four, and only sites 17 and 18 take six.
Permits are released in three rolling windows each year at 8am Mountain Time: February 15 for April 1 through July 31, June 15 for August 1 through November 30, and October 15 for December 1 through March 31. There is no lottery.
Conundrum is the one corner of this wilderness where the Forest Service abandoned the zone model entirely. There are 20 numbered campsites, each with its own group-size cap, and you camp at the one you reserved. The sites are small on purpose: eleven of the twenty take a maximum of two people, and only sites 17 and 18 take six.
The trail runs from the Conundrum Creek Trailhead up the valley to the springs at about 11,200 feet, roughly 17 miles round trip. The trailhead is outside the Maroon Scenic Area, which means you do not need a parking or shuttle bus reservation to get here - but the Forest Service still asks you to carpool, because the parking is limited.
Booking is site-specific. The 20 numbered campsites carry individual group-size limits: sites 1, 2, 5, 7, 8, 9, 10, 11 and 16 cap at two people, sites 3, 4, 6, 12, 13, 14, 15, 19 and 20 cap at four, and sites 17 and 18 cap at six. Site 1 sits about 300 feet from the hot springs and site 2 about 400 feet, so the numbers closest to the water go first.
The rules at the springs are stricter than elsewhere in the wilderness. Dogs are prohibited in the designated campsites here, campfires are prohibited at all of them, and overnight pack and saddle stock are not allowed at any designated campsite in the Conundrum Hot Springs permit zone.
The walk in is long and steady rather than steep, following the creek up the valley. Then you top out and there is steam coming off the rock. You get your site, set up, and go soak while the light drains off the peaks above. There are no toilets up here, so you handle that yourself, and no fires at any of the designated sites - it is a stove-and-headlamp evening, which suits the place.
The only access to the hot springs, about 8.5 miles below them.
You do not need a parking or shuttle bus reservation to access the Conundrum Hot Springs trailhead, but you do need to carpool - trailhead parking throughout the wilderness is limited.
Reached from Aspen, separate from the Maroon Creek Road corridor and its shuttle system.
Aspen has full services.
Required and recommended gear for Conundrum Hot Springs
Trailhead transportation options
Browse all shuttlesExperienced wilderness guides
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A campsite. Conundrum has 20 numbered designated campsites, and the Forest Service requires that you camp at your reserved campsite. That is different from the Four Pass Loop zones, where you reserve a zone and pick an established site inside it.
It depends on the site. Nine of the 20 sites have a maximum group size of 2, nine have a maximum of 4, and only sites 17 and 18 take 6. Check the cap on the specific site before booking.
No. Permits are released in three rolling advance-reservation windows at 8am Mountain Time: February 15 for April 1 through July 31, June 15 for August 1 through November 30, and October 15 for December 1 through March 31.
Site 1 is approximately 300 feet from the hot springs and site 2 approximately 400 feet. Both have a maximum group size of 2.
No. Dogs are prohibited in the designated campsites at Conundrum Hot Springs. Everywhere else in the Maroon Bells-Snowmass Wilderness dogs must be on leash.
No. The Forest Service states you do not need a parking or shuttle bus reservation to access the Conundrum Hot Springs trailhead - unlike the Maroon Scenic Area. You do need to carpool, since trailhead parking is limited.
No. Campfires are prohibited at all designated sites at Conundrum Hot Springs, along with Crater Lake and Capitol Lake. Bring a stove.
No active conditions reported
Sign in to report trail conditions.
Steam off the pools at first light, before anyone else is up, with the peaks above catching the earliest sun. It is the only time the springs are both lit and empty.
Overcast is kind here - the steam reads better against flat light than against hard sun, and the pools stop being a mirror.
The site cap does the work: with eleven of the twenty sites limited to two people, the total population at the springs stays low. Early morning and late evening are when the pools are quietest, since day hikers are on the trail during the middle hours.
Consider these alternatives if your preferred dates aren't available.
The 26-mile circuit over four passes above 12,000 feet in the same wilderness, booked zone by zone rather than site by site.
A much bigger trip on the same permit system, but you reserve a dispersed zone for each night instead of a numbered campsite.
Eleven numbered campsites close to Maroon Lake, booked the same site-specific way as Conundrum.
A far shorter walk in and the classic Bells view, but no hot springs, and it needs a Maroon Scenic Area parking or bus reservation.
Nine numbered campsites at Capitol Lake, on the same permit and the same rolling release windows.
Quieter than Conundrum and no soaking, with the same no-fire and no-stock restrictions at the designated sites.
Nearby campgrounds to complete your Conundrum Hot Springs trip
Very HardIn Demand8 sitesDinosaur National Monument
Very HardIn Demand55 sitesRocky Mountain National Park
Very HardIn Demand147 sitesRocky Mountain National Park
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