Colorado's hot springs are mountain water, which means altitude, snow and a genuinely short window on the undeveloped ones. The resorts run year-round; the backcountry pools below mostly do not.
Visiting Colorado? Undeveloped springs reward a little homework: read the access notes and the season before you build a day around one, and have a second choice — springs close, wash out, and fill up on weekends.
Colorado's statute is C.R.S. § 18-7-302, and it needs two things at once: circumstances “likely to cause affront or alarm”and the “intent to arouse or to satisfy the sexual desire” of someone.
It is not drafted to reach ordinary, non-sexual nudity.
That is not the same as “it's legal here.” Counties and cities legislate separately, and whoever manages the ground, whether that is State Parks, the Forest Service, BLM, a county or a private owner, sets its own rules on top. Check the land manager for the spot you're actually going to.
Nanitch is a map, not a law firm, and none of this is legal advice. Rules change and enforcement is local, so if it matters, check with the agency that manages the land before you go. Statute last read August 2026.
Confirmed or written up (6)
These have a page here because somebody has been to them: curated by Nanitch, confirmed by a member, or written up with real access notes.
Conundrum Hot SpringsPublic swim spot · July through September, when the high-elevation trail is generally free of heavy snow and creek crossings are safer.
Parking is available at the Conundrum Creek Trailhead off Conundrum Road near Aspen, followed by an 8.5-mile one-way hike gaining approximately 2,500 feet to reach the springs. Ove…
Located south of Ridgway, Colorado, off US Highway 550 and County Road 3, with on-site parking at the property entrance.
Hot springPublic swim spot · Summer to early fall (June through September) when high-elevation mountain roads are clear of snow.
Located off US Highway 550 (Million Dollar Highway) north of Silverton via Forest Road 820 (Chattanooga Road), with limited roadside pull-off parking and a short walk to the spring…
Accessible via County Road 36 to an on-site parking lot with a short walk to the pools, requiring advance reservations as well as 4WD or snow tires/chains from November 1 to May 1.…
Also on the map (17)
Named hot springs imported from OpenStreetMap that nobody has confirmed yet. They are on the map and in the app, and they get a page here the moment someone reports back from one, not before. Listing every one of them:
Charlotte Hot Springs & Botanical Gardens
Cottonwood Hot Springs
Dakota Hot Springs
Durango Hot Springs
Glenwood Hot Springs Grand Pool · Glenwood Springs
Glenwood Hot Springs Therapy Pool · Glenwood Springs
Hot Sulphur Springs
Iron Mountain Hot Springs · Glenwood Springs
Pagosa Hot Spring
Penny Hot Springs
Piedra River Hot Springs
Pinkerton Hot Springs
Radium Hot Springs
South Canyon Hot Springs
The Mother Spring
Valley View Hot Springs · Moffat
Yampah Source Spring
A further 8 hot springs in Colorado are on the map with no name of their own, because OpenStreetMap records them only as “hot spring”. They are on the map; there is nothing to call them by here.