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263 of 282 listings backed by a named source

Find Your Perfect US Natural Hot Spring.Verified, mapped & unfiltered.

282 hot springs across 23 states — with the clothing policy, the road you actually need, and the hike. Every fact shows who confirmed it.

Try “Colorado”, “Steamboat Springs”, or share your location to sort by what's closest.

282
springs mapped
29
clothing optional
31
hike-in only
119
free to soak

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By state

All 23 states

Road trips

Best-documented springs

Explore the map

Narrow it down, then hover a card to find it on the map — or click a pin to jump to the listing.

Springs on your driveGuided matcher

282 springs

Showing 60 of 282 — the full map and filters load with JavaScript.

How we know

An AI will tell you confidently. We tell you who said so.

Every attribute carries its source — the operator's own website, two or more independent visitor reviews, or nothing at all. When nothing confirms a detail we label it unverified rather than guess, because being wrong about a 4x4 road or a clothing policy is what ruins a trip.

Verified by operatorConfirmed by 2+ visitorsUnverified — call ahead

Where to start

There are 282 hot springs in this directory across 23 states, and they are not interchangeable. A free pool at the end of a dirt road and a historic bathhouse with a front desk answer different questions, so the fastest way in is to decide which question you are asking.

If you know where you are going, start with the state. Each state page ranks every spring we list there by what is confirmed rather than by opinion, then lists the towns, so you can see what sits near your route before you open a single listing. Idaho, Colorado and Oregon hold the most springs; the smaller states are short lists worth reading in full.

If you are planning a trip rather than a single soak, start with a road-trip guide. Each one is written against the same data as the listings and strings the springs together the way you would actually drive them, with the legs, the roads that need clearance, and which soaks are free. Idaho, Colorado, Oregon, Nevada, California, Montana, New Mexico and Utah each have one.

If you already know the kind of soak you want, the springs further down are the best-documented ones we have: the listings with the most facts confirmed by an operator or by repeat visitors. They are a good picture of what a complete listing looks like, and a fair benchmark for the rest.

And if you would rather filter, the map takes setting, clothing policy, road and trail access, and sorts by distance once you share your location. Whatever you pick, check conditions before you leave. Forest roads close for the season, pools change with snowmelt, and policies change without notice.

Browse by state

All 23 states, 217 towns and regions.

Idaho67Colorado36Oregon29Nevada26California24Montana20New Mexico19Washington12Utah11Wyoming8Arkansas5Alaska5Texas4South Dakota3Arizona3West Virginia2New York2Hawaii1Oklahoma1Louisiana1North Carolina1Florida1Virginia1
Browse every state in detail

Plan a road trip

Trip planning, etiquette, and the best soaks by theme — built from the directory's verified data.

The Idaho hot springs road trip — 62 open soaks, one giant loopIdaho holds more natural hot springs than any other state — 67 of them, 62 open and 35 free. A Boise-based loop through the central mountains, the southeast resort towns, and the northern backcountry, all verified against our data.Read the guideThe Colorado hot springs road trip: 35 soaks in one mountain loopA complete Colorado hot springs road trip — from Denver through Steamboat, Glenwood, Ouray, Pagosa, and the San Luis Valley, covering all 36 springs we track with the verified data behind each stop.Read the guideThe Oregon hot springs road trip — 29 springs from the Cascades to the high desertOregon's 29 natural hot springs split into two completely different trips — a waterfall-lined Cascades loop out of Portland and a wide-open high-desert loop in the east. 12 are free to soak, 17 stay soakable in winter, all verified against our data.Read the guideThe Nevada hot springs road trip — 26 soaks in the freest state in AmericaNevada has the highest free share of any state with more than five springs in our directory — 20 of 26 springs are free to soak. Three legs from Reno to the Black Rock Desert to the Great Basin spine, all verified against our data.Read the guideCalifornia hot springs, fact-checked — 17 open soaks and the 7 not to drive toEvery California hot spring in our directory, checked against Forest Service, BLM, National Park Service, State Parks and operator pages on October 1, 2026 — what's open, what "free" really costs, trail miles versus map miles, and the clothing rules operators actually post.Read the guideThe Montana hot springs road trip — 19 open soaks in the West's resort capitalMontana has the highest resort share of any state in our directory — 16 of its 20 springs are resorts or spas. Three legs along I-90, through the northwest, and down the Bitterroot, all verified against our data.Read the guideThe New Mexico hot springs road trip — 17 open soaks in the West's most clothing-optional stateNew Mexico's 17 open springs span the Jemez canyon, Taos, and Truth or Consequences — with a 35% clothing-optional share, the highest of any state in our directory. Three driving legs, all verified against our data.Read the guideThe Utah hot springs road trip: 11 soaks in one loopA complete Utah hot springs road trip loop — from Salt Lake City to Zion, linking all 11 springs we track, with route logic and what each stop is like.Read the guide

More soaking guides

Hot springs etiquette: the unwritten rulesHow to behave at a hot spring — clothing norms, noise, glass, packing out, and why regulars care so much about the rules.Read the guideWhat to pack for a hot spring tripA practical hot springs packing list — what changes between a resort day pass, a roadside pool, and a backcountry soak.Read the guideThe best hot springs near Denver, ranked by drive timeThe best hot springs within day-trip distance of Denver — from Idaho Springs' historic pools to Buena Vista's mountain resorts, with drive times and what to expect.Read the guideClothing-optional hot springs: etiquette and where to goA first-timer's guide to clothing-optional hot springs — the etiquette that matters, what to expect, and where to find legitimate clothing-optional soaks across the US.Read the guideFree natural hot springs in the US — the complete guide119 natural hot springs — nearly half of America's total — are free to soak in. Where they cluster, what "free" really means, and the practical fine print.Read the guideHike-in hot springs — the complete guide to earning your soak34 natural hot springs we've measured sit more than a quarter mile from the nearest drivable road, plus three Washington hike-ins behind road closures. The longest hikes, the sweet-spot day hikes, and what to know before you shoulder a pack.Read the guideWinter hot springs — the complete guide to soaking in the snow157 natural hot springs across 11 snowbelt states are 100°F or hotter and reachable by car in winter. Where they cluster, the best picks, and how to do it safely.Read the guideThe best hot springs near Boise — 40 open soaks within two hoursBoise sits inside the densest hot-springs country of any major US city — 40 open springs within 120 miles, 23 of them free. The closest soaks, the Banks–Lowman corridor, and the day trips worth the drive, all verified against our data.Read the guideHot Springs in the Eastern US: Where to Soak East of the PlainsEast of the Plains: Arkansas and North Carolina are hot at the source; others are warm or heated. NOAA: none in Michigan, Maine, Mississippi, or Louisiana.Read the guide

Well-documented springs to start with

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