Iron Mountain Hot Springs
A hillside soaking complex on the Colorado River in Glenwood Springs with dozens of small mineral pools at different temperatures. Part of the site, including saunas and a café, is limited to guests 21 and older. Iron Mountain Hot Springs is open to day visitors for a fee.
| Access | Day passes for the public Day passes for all ages; a separate 21+ All Access pass adds adults-only areas. Online booking is $5 cheaper than walk-in. |
|---|---|
| Type | Developed pools, 35 pools |
| Location | Glenwood Springs, CO Managed by Private operator Directions (approximate location; check the official map) |
| Water | pools vary from 89 to 108 °F |
| Prices | General Access (all ages): $43 to $75 (price varies; online $5 less than walk-in) All Access (21+): $75 to $150 (price varies; online $5 less than walk-in) Checked October 2026 on the operator's site |
| Hours | 9 am–10 pm daily |
| Season | year-round; closed Thanksgiving and Christmas Day 2026, early close Christmas Eve |
| Reservations | recommended |
| Ages | All Access areas 21+ with ID; children under 5 only in the Family Zone |
| Facilities | saunas, cold plunges, food |
| Website | ironmountainhotsprings.com |
| Phone | (970) 945-4766 |
Best time to soak: Iron Mountain Hot Springs
From November to April average highs around Glenwood Springs stay at 36 to 60 °F, with nights down to 12 °F. From November to March lows average 12 to 26 °F, so paths and decks around the pools can ice over and dirt roads may close. In July highs reach 89 °F. Take breaks out of the water and bring plenty to drink on summer days.
| Month | High | Low | Rain days |
|---|---|---|---|
| Jan | 36 °F | 12 °F | 4 |
| Feb | 42 °F | 19 °F | 4 |
| Mar | 53 °F | 26 °F | 4 |
| Apr | 60 °F | 32 °F | 4 |
| May | 71 °F | 40 °F | 4 |
| Jun | 82 °F | 46 °F | 3 |
| Jul | 89 °F | 53 °F | 3 |
| Aug | 86 °F | 52 °F | 4 |
| Sep | 78 °F | 44 °F | 4 |
| Oct | 65 °F | 33 °F | 4 |
| Nov | 49 °F | 24 °F | 3 |
| Dec | 36 °F | 15 °F | 3 |
More to do nearby
- Two Rivers Park Skatepark (skatepark, 1 mi)
- Grand Fountain (splash pad, 1 mi)
- Rifle Falls (waterfall, 21 mi)
Pack for the hot springs
- Earth Pak roll-top waterproof dry bag Keeps your phone, keys and dry clothes safe on wet rocks next to the pool. View on Amazon
- Battery-free floating water thermometer Check a pool before you get in. Natural springs can run hotter than they look. View on Amazon
- Top pick 4Monster quick-dry microfiber towel with case Packs small for the hike to the pools and dries in the car on the way home. View on Amazon
We haven't tested these ourselves; we chose them by size and specs. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Check the current price on Amazon.
Other hot springs near Glenwood Springs
- Glenwood Hot Springs Resort Day pass
- Yampah Spa Vapor Caves Day pass
- Avalanche Ranch Cabins & Hot Springs Day pass
- Penny Hot Springs Free
- Conundrum Hot Springs Free
- Radium Warm Springs Free
- Old Town Hot Springs Day pass
- Juniper Hot Springs Day pass
Waterfalls nearby
- Rifle Falls (21 mi)
Sources
Access, prices and rules come from these official pages, checked October 2026. Hot springs close for weather, repairs or high water, so confirm before you go.
Something changed? Tell us.
Frequently asked questions
Do you have to pay at Iron Mountain Hot Springs?
General Access (all ages): $43 to $75 (price varies; online $5 less than walk-in) and All Access (21+): $75 to $150 (price varies; online $5 less than walk-in), according to the operator as of October 2026. Prices change, so check before you go.
How hot is Iron Mountain Hot Springs?
Pools vary from 89 to 108 °F.
When is Iron Mountain Hot Springs open?
9 am–10 pm daily. year-round; closed Thanksgiving and Christmas Day 2026, early close Christmas Eve.