Hot Sulphur Springs Resort & Spa
By the HotSpringsFind editorial team · How we compile records · Reviewed September 2026
Hot Sulphur Springs Resort & Spa is a resort hot spring listed near Hot Sulphur Springs, Colorado. Reported soak temperature: 105°F. See the visit fact sheet.
Stop on Colorado Hot Springs Loop — see all stops, ordered south to north.
Current status
Open 365 days a year 8 AM–9:45 PM (last entry 9:15 PM) in the town of Hot Sulphur Springs — ~20 untreated natural mineral pools ranging 98–112°F on a hillside, walk-in only with NO reservations or capacity cap: adults $30 Mon–Thu / $35 Fri–Sun, kids 4–11 $16, seniors 65+ $23, under-4 free, late-entry (8:15–9:15 PM) $17/$12; 16 of the pools are 12+ only while 8 pools admit younger kids; private baths and massages bookable ahead.
Checked September 2026 · verified on the operator’s site · 5 sources ↓
Staying overnight?
Choose a town stay or book the spring resort’s own lodging.
Hot Sulphur Springs is under a mile from the spring.
We may earn a commission from bookings through these links, at no extra cost to you.
Before you go
- Status: Open — last verified below — confirm via Hot Sulphur Springs Resort & Spa — official Hot Springs page (20 pools, walk-ins, hours 8am–9:45pm, full price list, 12+ pool rule).
- Cost: Reported $30 — confirm current rates before visiting.
- Getting there: Developed resort — confirm operating hours and any reservation requirement.
- Water: Reported soak temperature 105°F — always test the water before entering.
- Rules: Reported clothing required; pets reported not allowed — confirm current rules.
- Conditions: check weather, fire closures, and land-manager alerts the week you go — mountain access changes seasonally.
- Reservations/permits: None — pay at the door.
- Best time to go: Weekday mornings are quietest; the 8:15 PM late-entry window is the cheapest soak and thin crowds; winter weekdays are nearly empty.
- Clothing reality: Official: 'Clothing is Required' — swimsuits mandatory in all public pools. Customary: standard swimwear. Private property.
- Kids: Allowed.
- Cell service: ok — download maps and tell someone your plan.
- Accessibility: Newly renovated locker rooms with showers/changing areas; pools terraced up a hillside with steps — upper pools not mobility-friendly; call ahead about accessible pool options.
- Walk-ins only for the public pools — no reservations and no capacity cap; arrive early on holiday weekends anyway
- 16 of the pools are restricted to ages 12+; kids 4–11 limited to 8 designated pools — families should check which pools before promising kids a soak
- Day pass covers all public pools for the ENTIRE day — one of Colorado's best soak values
- Late-entry discount window 8:15–9:15 PM: $17 adult / $12 child
- Coin-operated lockers 50¢ (one-time use) — bring quarters; towel rental $3, robe $8
- No glass, no smoking/vaping, no alcohol, no food in pool areas
- Large swimming pool is CHLORINATED and summer-season only — the 19 mineral pools are untreated year-round
- Booking a massage includes a complimentary full-day pool pass; private baths reservable ahead
- Overnight guests soak unlimited 8 AM–9:30 PM including check-in and check-out days; nearby pet-friendly motel (~0.7 mi) sells discounted day passes to its guests
- Sulfur smell is real — the town and springs are named for it
- Hazard: Hottest pools reach ~112°F — limit soak time, hydrate
- Hazard: Hillside pool layout — steps and wet stone surfaces
- Hazard: Winter driving on US-40 over Berthoud Pass to reach Grand County
About this spring
Historic hot springs resort in the town of Hot Sulphur Springs with ~19-21 gravity-fed, untreated mineral pools (~98-112°F) terraced on a hillside above the Colorado River. Springs were traditionally used by the Ute people and commercially developed since the 1860s. One of Colorado's most affordable developed hot springs. Fee: Adult day pass ~$30-35; children $16. Clothing required. Chlorinated swimming pool open summer only.
Hot Sulphur Springs Resort & Spa terraces a hillside above the Colorado River in the town of Hot Sulphur Springs (the Grand County seat), just off US-40 between Granby and Kremmling. The property operates about 19 public hot mineral pools plus a large chlorinated swimming pool open in summer, with pool temperatures ranging from 98°F to 112°F. The water is 100% natural and untreated — no chemicals, filters, or pumps; gravity-fed flow (about 5 gallons per 40 seconds) is the only treatment, and the resort says water flow and mineral content have been constant since first measured in 1946. Seven springs on the mountain feed the pools, which then drain through a duck pond to the river.
It's one of Colorado's most affordable developed springs: adult day passes run $30 Monday–Thursday and $35 Friday–Sunday, children 4–11 are $16, seniors $23, and a late-entry discount ($17 adults/$12 kids) kicks in after 8:15 p.m. Walk-ins only — no reservations — and it's open 365 days a year, roughly 8 a.m.–9:45 p.m. Clothing is required; eight pools are open to kids under 12 and 16 pools are reserved for ages 12+. The springs were traditionally used by the Ute; the resort's own history says the springs were found in the 1840s with the first bathhouse on site in the 1850s. A motel and massage services are on site.
Directions & trailhead access
Just off US-40 in the town of Hot Sulphur Springs, between Granby and Kremmling, ~45 min from Winter Park. Drive-up access with on-site parking.
Colorado geothermal context
Colorado's springs rise along fault zones threading the Rocky Mountains — the same tectonics that built the ranges drive deep groundwater circulation. Many sites sit above 7,000 feet, so snowpack closes roads and trailheads well into late spring, and afternoon thunderstorms are routine in summer. Resort valleys like Steamboat, Pagosa, and Ouray anchor the developed end of the spectrum.
What a resort site means here
A resort spring is a commercial operation: developed pools or tubs with controlled temperatures, changing facilities, and usually day-use fees or lodging packages. Expect posted rules (swimsuits, quiet hours, age limits), staff on site, and in many cases required reservations — especially on weekends and holidays.
Best time to visit
Year-Round (Best: May – October)Pool temperatures and access can change with weather and season. Outdoor ambient temperatures fluctuate significantly across Colorado. Late spring through autumn offers the most comfortable road access.
Fact sheet
| Reported soak temp | 105°F |
|---|---|
| Source temp (historical) | 120–126°F |
| Trail access | Recorded coordinates — access unverified |
| Access fee | Reported $30 — verify |
| Clothing policy | Reported clothing required |
| Pet policy | Reported no pets |
| Geothermal data reference | NOAA Thermal Springs List (1980 archive) |
| Check land status | Hot Sulphur Springs Resort & Spa — official Hot Springs page (20 pools, walk-ins, hours 8am–9:45pm, full price list, 12+ pool rule) |
Hot Sulphur Springs Resort & Spa FAQ
Is Hot Sulphur Springs Resort & Spa open right now?
Open 365 days a year 8 AM–9:45 PM (last entry 9:15 PM) in the town of Hot Sulphur Springs — ~20 untreated natural mineral pools ranging 98–112°F on a hillside, walk-in only with NO reservations or capacity cap: adults $30 Mon–Thu / $35 Fri–Sun, kids 4–11 $16, seniors 65+ $23, under-4 free, late-entry (8:15–9:15 PM) $17/$12; 16 of the pools are 12+ only while 8 pools admit younger kids; private baths and massages bookable ahead. (Status verified on the operator’s site, last checked September 2026.)
Is Hot Sulphur Springs Resort & Spa free?
Hot Sulphur Springs Resort & Spa is listed with reported fees near Hot Sulphur Springs. Fees are reported; confirm admission, parking and permit costs with the site manager.
What temperature is Hot Sulphur Springs Resort & Spa?
Hot Sulphur Springs Resort & Spa has a reported soak temperature of 105°F and a historical source temperature of 120–126°F in survey records. Historical data may not reflect current conditions — always test water before entering.
Is Hot Sulphur Springs Resort & Spa clothing optional?
Hot Sulphur Springs Resort & Spa is listed as swimsuit-required in directory records. Confirm current rules before visiting, as policies change.
How do you access Hot Sulphur Springs Resort & Spa?
Hot Sulphur Springs Resort & Spa is a private venue with paid public admission. Confirm current hours, fees and booking requirements with the operator before visiting.
Where to stay in Hot Sulphur Springs
Choose a town stay or book the spring resort’s own lodging. Check what your selected booking includes.
Hot Sulphur Springs is under a mile from the spring.
We may earn a commission from bookings through these links, at no extra cost to you.
Sources & references
- Hot Sulphur Springs Resort & Spa — official Hot Springs page (20 pools, walk-ins, hours 8am–9:45pm, full price list, 12+ pool rule) — operator · 2026-09
- Hot Sulphur Springs Resort & Spa — official homepage (365 days, late-entry discount, pet-friendly sister motel) — operator · 2026-09
- Hot Sulphur Springs Resort & Spa — official Facilities page (rates, towel/robe rentals) — operator · 2026-09
- Soak Destinations — Hot Sulphur Springs Resort & Spa 2026 guide (overnight guest pool access, massage-includes-pass detail) — community · 2026
Additional references for this record; a source link does not guarantee current conditions.
Details above were verified against the named sources on their listed dates — conditions change, so recheck before traveling. · How we verify our data · Report a correction
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