Iron Mountain Hot Springs
By the HotSpringsFind editorial team · How we compile records · Reviewed September 2026
Iron Mountain Hot Springs is a resort hot spring listed near Glenwood Springs, Colorado. Reported soak temperature: 103°F. See the visit fact sheet.
Stop on Colorado Hot Springs Loop — see all stops, ordered south to north.
Current status
Commercial soaking venue on the Colorado River in Glenwood Springs, open daily 9am-10pm: Select Access (all ages, 16 geothermal pools + big family pool) runs $43-75 and Premier Access (21+, adds 12 WorldSprings pools + Sauna Summit) $75-135, sold as Quick Dip (<=3hr) or Day Pass with re-entry; booking online saves $5 and weekends/holidays sell out; all pools communal; kids under 5 barred from geothermal pools but allowed in the Family Zone; scheduled closures Oct 20-21 2026, Thanksgiving, early 5pm close Christmas Eve, and Christmas Day.
Checked September 2026 · verified on the operator’s site · 9 sources ↓
Staying overnight?
Stay in town for Glenwood’s developed pools.
Glenwood 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: Reservation or permission required — confirm via Visit Glenwood Springs — Iron Mountain listing (reservations encouraged; $5 online discount).
- Cost: Reported $43 — confirm current rates before visiting.
- Getting there: Developed resort — confirm operating hours and any reservation requirement.
- Water: Reported soak temperature 103°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 — paid admission only
- Booking: Reservation required.
- Best time to go: Weekday mornings are quietest; weekends and holidays sell out — reserve ahead online (also saves $5). Evening 8-10pm Premier slots are a quieter adults-only option.
- Clothing reality: Official: swimwear required in all pool areas — no nudity at this family venue. Customary reality: everyone wears suits. Minerals may tarnish jewelry and discolor some swimwear fabrics (operator warning).
- Kids: Allowed.
- Cell service: ok — download maps and tell someone your plan.
- Accessibility: Operator lists the property as wheelchair accessible (FAQ); terraced pool deck with stairs between some pools — check with venue for specific pool access
- Weekends/holidays sell out — book online ahead; online price is $5 less than walk-in
- Quick Dip pass is <=3 hours; Day Pass allows re-entry
- All pools communal — no private soaking
- Every guest signs a waiver at check-in (minors need parent/guardian signature); waivers cannot be signed in advance
- Valid govt photo ID required for Premier Access (21+) and alcohol purchases
- Cancel/change free once up to 48 hrs before visit; inside 48 hrs non-refundable, $5/ pass change fee; optional reservation insurance at checkout
- No outside food, beverages, or alcohol; refillable water bottles OK
- No speakers/amplified audio, no smoking/vaping anywhere on property
- Under-21 guests barred from Sauna Summit, WorldSprings area, and Sandbar Café
- Children under 5 not allowed in geothermal pools (Family Mineral Pool + jetted spa OK)
- Mineral water can discolor swimwear and tarnish jewelry
- Maintenance/holiday closures: Oct 20-21 2026, Thanksgiving Day, early 5pm close Dec 24, Christmas Day
- $2.99-ish online processing fee per order
- Hazard: Mineral water tarnishes jewelry / discolors swimwear
- Hazard: Hot pool temps up to ~108F — hydrate and limit soak time
- Hazard: Winter deck surfaces can be icy/slippery
About this spring
Opened 2015, terraced along the Colorado River in Glenwood Springs with 30+ smaller mineral soaking pools (~98-108°F) fed by natural hot springs, plus a large freshwater family pool. The 21+ WorldSprings section offers globally inspired mineral pools, cold plunges, and a sauna circuit. Fee: ~$43-75 Select Access; ~$75-135 Premier (21+); varies by day. Weekends frequently sell out — reserve online. Swimsuits required. Children under 5 restricted to family pool.
Iron Mountain Hot Springs opened in July 2015 on the north bank of the Colorado River at 281 Centennial Street in Glenwood Springs, terraced so most of its soaking pools look straight out on the water and the Roaring Fork Valley. The property operates roughly 31–35 pools: a family-friendly Select Access area with about 16–19 geothermal mineral pools (98–108°F), a large freshwater family pool, and a jetted spa, plus the adults-only (21+) WorldSprings section added in 2024 — a dozen pools inspired by famous springs like Iceland's Blue Lagoon and the Dead Sea, two single-mineral pools (magnesium and potassium), cold plunges, and a sauna circuit. The geothermal source water is reported around 105–109°F.
Admission is by timed reservation (3-hour soaks or full-day), and the resort strongly encourages booking online — weekends frequently sell out and online booking saves about $5 per pass. Reported pricing runs roughly $43–76 for Select Access and $68–135 for Premier Access (all pools, 21+), varying by day and season. Children under five are restricted to the family pool; WorldSprings is strictly 21+. Swimsuits are required, towels and lockers are included, and there are two cafés on site.
Directions & trailhead access
281 Centennial St, Glenwood Springs, on the north bank of the Colorado River near the I-70 Glenwood exit. Timed-entry reservations encouraged.
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 | 103°F |
|---|---|
| Source temp (historical) | 105–109°F |
| Trail access | Recorded coordinates — access unverified |
| Access fee | Reported $43 — verify |
| Clothing policy | Reported clothing required |
| Pet policy | Reported no pets |
| Geothermal data reference | NOAA Thermal Springs List (1980 archive) |
| Check land status | Visit Glenwood Springs — Iron Mountain listing (reservations encouraged; $5 online discount) |
Iron Mountain Hot Springs FAQ
Is Iron Mountain Hot Springs open right now?
Commercial soaking venue on the Colorado River in Glenwood Springs, open daily 9am-10pm: Select Access (all ages, 16 geothermal pools + big family pool) runs $43-75 and Premier Access (21+, adds 12 WorldSprings pools + Sauna Summit) $75-135, sold as Quick Dip (<=3hr) or Day Pass with re-entry; booking online saves $5 and weekends/holidays sell out; all pools communal; kids under 5 barred from geothermal pools but allowed in the Family Zone; scheduled closures Oct 20-21 2026, Thanksgiving, early 5pm close Christmas Eve, and Christmas Day. (Status verified on the operator’s site, last checked September 2026.)
Is Iron Mountain Hot Springs free?
Iron Mountain Hot Springs is listed with reported fees near Glenwood Springs. Fees are reported; confirm admission, parking and permit costs with the site manager.
What temperature is Iron Mountain Hot Springs?
Iron Mountain Hot Springs has a reported soak temperature of 103°F and a historical source temperature of 105–109°F in survey records. Historical data may not reflect current conditions — always test water before entering.
Is Iron Mountain Hot Springs clothing optional?
Iron Mountain Hot Springs is listed as swimsuit-required in directory records. Confirm current rules before visiting, as policies change.
How do you access Iron Mountain Hot Springs?
Iron Mountain Hot Springs is a private venue with paid public admission. Confirm current hours, fees and booking requirements with the operator before visiting.
Where to stay in Glenwood Springs
Stay in town for Glenwood’s developed pools. Admission is separate unless your chosen room rate explicitly includes it.
Glenwood 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
- Iron Mountain Hot Springs — Pricing & Hours (official) — operator · 2026-09
- Iron Mountain Hot Springs — First Visit / Know Before You Go (official) — operator · 2026-09
- Visit Glenwood Springs — Iron Mountain listing (reservations encouraged; $5 online discount) — official · 2026
- Travel + Leisure — Sauna Summit opening at Iron Mountain — news · 2026
- Sunshine with Savannah — visitor guide (3hr/day/night pass structure, QR drink ordering) — community · 2025
Additional references for this record; a source link does not guarantee current conditions.
- www.ironmountainhotsprings.com
- gazette.com/2024/07/05/colorado-hot-springs-expands-with-new-pools-inspired-by-famed-mineral-waters-found-around-the-world
- soakdestinations.com/iron-mountain-hot-springs
- hotsprings.co/iron-mountain-hot-springs
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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