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LakeQuality

Updated July 2026

Dunton Hot Spring

Recorded at 108°F (42°C) in Colorado — classified Hot. Hotter than the 104°F limit health agencies recommend — too hot for many people, with a real risk of overheating and burns. Test the water and keep exposure short, if you enter at all.

Hotter than recommended

At 108°F this is above the 104°F ceiling the CDC and CPSC recommend for hot water. Overheating and burns are a real risk. Test the water and keep exposure short, if you enter at all.

Recorded temperature
108°F / 42°C
Classification
Hot (104–113°F (40–45°C))
State
Colorado
Coordinates
37.7710, -108.0910

What this number is, and is not

108°F is the maximum surface temperature measured at the vent during the USGS/NOAA thermal springs survey (1965–1980). It is not a current reading, and the temperature of any pool downstream of a vent is almost always lower.

This page also records nothing about access. Land ownership, legal entry, trail conditions, and whether a usable pool exists are all outside this dataset. Confirm with the managing agency before setting out.

Graded lakes within 25 miles

Nearby hot springs

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Frequently Asked Questions

Dunton Hot Spring was recorded at 108°F (42°C), which classifies as Hot (104–113°F (40–45°C)). Hotter than the 104°F limit health agencies recommend — too hot for many people, with a real risk of overheating and burns. Test the water and keep exposure short, if you enter at all. That figure is the maximum surface temperature measured at the vent during the USGS/NOAA survey between 1965–1980 — not a current reading, and not the temperature of any pool downstream of the vent.

We can't tell you that, and at 108°F the question is largely settled by the temperature itself: this is above the 104°F ceiling health agencies recommend for hot water. Overheating and burns are a real risk at this temperature. Separately, this inventory records no information about land ownership, legal access, or whether a usable pool exists.

Dunton Hot Spring is in Colorado at approximately 37.7710, -108.0910. The nearest graded lake is Miramonte Reservoir, about 19.3 miles away. Coordinates come from the USGS/NOAA inventory and locate the vent, not a trailhead or parking area.

All Colorado hot springs →Hot springs by state →Lake water temperature →

Source: USGS/NOAA Thermal Springs List for the United States, via PANGAEA (CC-BY-4.0). Compilation: USGS Waring 1965 / Muffler 1979 + NOAA NGDC KGRD-12 (1980).

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