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LakeQuality

Updated July 2026

South Dakota Hot Springs

2 documented South Dakota hot springs with a recorded temperature, classified from the USGS/NOAA thermal springs inventory. Temperature classification only — this is not a soak recommendation and says nothing about whether a spring can be legally or safely reached.
  • 2 rated
  • Vintage 1965–1980
Cool
1
Warm
1
Ideal
0
Hot
0
Scalding
0

All South Dakota hot springs

SpringClassificationRecorded tempLocation
Hot SpringsWarm87°F (31°C)43.442, -103.481
Hot Brook SpringsCool75°F (24°C)43.452, -103.508

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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). Maximum recorded SURFACE temperature at the vent — not a soakable-pool reading and not a current measurement.

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