Paoha Island Springs
Rising from the volcanic island of Paoha in Mono Lake, Paoha Island Springs reaches 181 degrees Fahrenheit—one of California's hottest springs—emerging 132 degrees above ambient temperatures in a high-desert landscape.
Superheated waters discharge from volcanic vents on this island at 6,388 feet elevation, surrounded by the otherworldly saline expanse of Mono Lake. Sodium and sulfate-rich waters flow at extreme temperatures, creating a surreal geothermal laboratory where geology meets geochemistry on an island that periodically submerges and emerges with changing lake levels.
The springs are part of Paoha's volcanic formation within Mono Lake basin, where tectonic activity and hydrothermal systems have operated for millennia. The island itself formed through volcanic and sedimentary processes, creating a unique ecosystem owned and managed by the City of Los Angeles for watershed protection.
Reach the springs by boat access to the island only—this requires prior arrangement and respect for the primitive landscape. Expect a 3-mile hike from the lake shore. Best visited in warmer months when lake access is most feasible. Mineral-rich waters require caution; the extreme temperatures present serious safety risks.
Is Paoha Island Springs worth visiting?
Best for
- Observing powerful hot springs
- Overnight camping trips
Not ideal for
- Casual soaking
Rustic campsites with fire rings in Jeffrey Pine Forest. There is no trash service please pack out your trash.