Iron Mountain Hot Springs
Checked October 2026 · Sources
Iron Mountain Hot Springs is a $43 to $150 developed soak in Garfield County, Colorado, about 54 minutes' drive from Aspen: 126 F water at the source, snow likely November to April.
- $43 to $150
- Developed
"Upcoming closure dates include: October 20 - 21, 2026 ... Thanksgiving Day 2026 ... Christmas Day 2026"
about 54 min
42 mi from Aspen, no traffic
Drive times computed with GraphHopper; map data OpenStreetMap contributors.
The facts
- Water
- 126 F at the source, not the poolQuoted from the Water Quality Portal (USGS/EPA), checked Oct 11, 2026, 21 measured sample(s) at 14 spring site(s) within 1 mile; max shown
- Fee
"Select Access: $43 - $75. Premier Access (21+): $75 - $150. Online reservations are $5 less than walk-in rates."
Quoted from the operator, checked Oct 12, 2026- Hours
"Daily: 9:00 AM - 10:00 PM"
Quoted from the operator, checked Oct 14, 2026- Permit or reservation
"Book Ahead & Save: Online reservations are $5 less than walk-in rates."
Quoted from the operator, checked Oct 14, 2026- Clothing
- Not posted by the operatorChecked on the operator, checked Oct 11, 2026
- Snow
- Likely November to AprilComputed from NOAA snowfall, 2023 to 2026 seasons
- Run by
- The operator, ironmountainhotsprings.com
- Last checked
- October 2026
Water temperature
126 F at the source, from Water Quality Portal (USGS/EPA), 21 measured sample(s) at 14 spring site(s) within 1 mile; max shown. That is where the water leaves the ground; the pool you sit in is cooler.
Quoted from the Water Quality Portal (USGS/EPA), checked Oct 11, 2026, 21 measured sample(s) at 14 spring site(s) within 1 mile; max shown
Fees, hours and rules
Do you have to pay to go to Iron Mountain Hot Springs?
Yes.
"Select Access: $43 - $75. Premier Access (21+): $75 - $150. Online reservations are $5 less than walk-in rates."
Quoted from the operator, checked Oct 12, 2026
How much is a day pass at Iron Mountain Hot Springs?
- Premier Access (21+), adult-only relaxation
- $75 - $150
- Select Access, family-friendly fun
- $43 - $75
Time frame: Quick Dip, up to three hours, or Day Pass with re-entry permissions. Online reservations are $5 less than walk-in rates.
Quoted from the operator, checked Oct 14, 2026
When is Iron Mountain Hot Springs open?
"Daily: 9:00 AM - 10:00 PM"
Quoted from the operator, checked Oct 14, 2026
Do you need a permit or reservation for Iron Mountain Hot Springs?
"Book Ahead & Save: Online reservations are $5 less than walk-in rates."
Quoted from the operator, checked Oct 14, 2026
Pets and clothing
Not posted by the operator.
Checked on the operator, checked Oct 11, 2026
Seasons and winter access
Snow likely November to April at the spring.
Computed from NOAA snowfall, 2023 to 2026 seasons
Road and gate closures: check the operator's website.
Before you go
- Day pass: Premier Access (21+), adult-only relaxation $75 - $150; Select Access, family-friendly fun $43 - $75.
- Book Ahead & Save: Online reservations are $5 less than walk-in rates.
- Hours: Daily: 9:00 AM - 10:00 PM
- Status as of Oct 14, 2026: Upcoming closure dates include: October 20 - 21, 2026 ... Thanksgiving Day 2026 ... Christmas Day 2026
- Snow likely November to April.
- Check operator website (no feed) before you drive.
Getting there
Drive times from each town's center, no traffic (computed).
Both open at Iron Mountain Hot Springs.
Nearby hot springs (6)
Questions
Is Iron Mountain Hot Springs free?
"Select Access: $43 - $75. Premier Access (21+): $75 - $150. Online reservations are $5 less than walk-in rates."Quoted from the operator, checked Oct 12, 2026
Is Iron Mountain Hot Springs clothing optional?
Is Iron Mountain Hot Springs open, and what are the hours?
"Daily: 9:00 AM - 10:00 PM"Quoted from the operator, checked Oct 14, 2026
Do you need a permit or reservation?
"Book Ahead & Save: Online reservations are $5 less than walk-in rates."Quoted from the operator, checked Oct 14, 2026
Sources and last checked
Page last checked October 2026 (the oldest date below).
- waterqualitydata.us: water temperatureChecked Oct 11, 2026
- ironmountainhotsprings.com/pricing: fee, hours, permit or reservation, day pass pricesChecked Oct 12, 2026 and Oct 14, 2026
- ironmountainhotsprings.com: clothing (not posted)Checked Oct 11, 2026
- Drive times from Aspen, Vail, Grand Junction: computed with GraphHopper 11.1, car profile, no trafficOpenStreetMap extract of Oct 12, 2026
- Snow months (Nov, Dec, Jan, Feb, Mar, Apr): computed from NOAA snowfall, 2023 to 2026 seasonsMethod page explains the rule
- Climb: computed from USGS 3DEP elevations along our OpenStreetMap foot routeComputed Oct 14, 2026
- Photo: Jbirkby, Wikimedia Commons, CC BY-SA 4.0Checked by eye Oct 12, 2026