Natural geothermal springs in a volcanic canyon inside Lake Mead National Recreation Area on the Arizona side of the Colorado River corridor south of Hoover Dam. A strenuous ~5-mile out-and-back (or loop via White Rock Canyon with a fixed ladder) reaches free-flowing hot water (~111–120°F) in a desert wash; seasonal heat closures apply.
Field facts
| Region | Mohave County, AZ |
|---|---|
| Coordinates | 35.9605, -114.7255 |
| Agency | NPS Lake Mead National Recreation Area |
| Temp | About 111–120°F at the spring discharges |
| Distance | ~5 mi round-trip (strenuous); 750 ft elevation change |
| Season | Typically open fall–spring; annual heat closure mid-May–Sept (confirm NPS) |
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