Durfee Spring is a natural thermal spring in Idaho. Its water was recorded at about 102°F (39°C) at the surface — a ideal water temperature. That figure is a historical maximum surface reading from the USGS thermal-springs inventory, not the temperature of a soaking pool, and it doesn't tell you whether the spring is developed, accessible, or safe to enter.
In the classic hot-tub range, up to about 104°F — the comfortable soaking window recommended for hot water.
Durfee Spring's recorded temperature falls in a comfortable range, but this is a single historical surface reading — actual conditions vary by season, rainfall, and exactly where you measure. Confirm the current temperature yourself before entering.
This listing comes from the USGS/NOAA thermal-springs inventory (a reference dataset compiled from records dating to the 1960s–1980s). It does not include ownership, developed-vs-primitive status, or access rights. Many U.S. thermal springs sit on private, tribal, or protected land, or are undeveloped and unsafe — always verify legal access and current conditions with the land manager before visiting, and follow Leave No Trace.
Approximate location: 42.10, -113.63 (Idaho). This marks the USGS-recorded spring area, not a trailhead, parking spot, or public access point — many springs are on private, tribal, or protected land. Confirm legal access before visiting.
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Common questions
Frequently Asked Questions
Durfee Spring was recorded at about 102°F (39°C) at the surface in the USGS thermal-springs inventory — a ideal water temperature. This is a historical maximum surface reading, not a current or pool temperature.
We can't say. HotSpringIndex classifies water temperature from public USGS data; it is not a safety clearance. Access, ownership, water depth, footing, and current temperature all matter — verify them with the land manager before visiting.
Durfee Spring is a thermal spring in Idaho, near 42.10, -113.63. Many springs are on private or protected land — confirm access before you go.
Location and temperature from the USGS/NOAA Thermal Springs List for the United States (a historical reference inventory, 1965–1980). The temperature is a maximum surface reading, not a soaking-pool temperature, and can vary by season — see our methodology. This is a temperature classification, not a safety clearance: hot-spring water can scald, springs can sit on private or closed land, and conditions change. Verify access and safety with the land manager, and follow Leave No Trace.