Agua Caliente Springs

Agua Caliente Springs was recorded at 102°F (39°C), which classifies as Ideal (99–104°F (37–40°C)). In the classic hot-tub range, up to about 104°F — the comfortable window health agencies recommend for hot water. 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.

This page classifies a temperature; it does not tell you whether a spring can be legally or safely reached. The inventory carries no information about land ownership, access, trail conditions, or whether a usable pool exists at all — many listed springs sit on private land or inside protected thermal areas where entry is prohibited. Confirm with the managing agency before setting out.

Agua Caliente Springs is in Arizona at approximately 32.9840, -113.3240. There is no LakeQuality-graded lake within 25 miles. Coordinates come from the USGS/NOAA inventory and locate the vent, not a trailhead or parking area.