Hot Springs Valley
Hot Springs Valley in Lassen Volcanic National Park sits at 5,816 feet elevation, but surface water reads only 83 degrees Fahrenheit due to mixing with cold mountain runoff. The spring demonstrates classic alpine thermal behavior where heat dissipates rapidly.
Walking through conifer forest at high elevation, you approach a spring that reveals the park's geothermal complexity. Over 200 inches of snow annually shape this landscape, and the thermal features remain modest compared to Lassen's more dramatic geysers and mudpots.
The valley sits within Lassen Volcanic National Park, where hydrothermal features mark zones of residual volcanic heat. The relatively cool water and low mineralization reflect this spring's position in a region of distributed, moderate geothermal activity.
The short walk from Warner Valley Road brings you to this spring. Reservable camping at Warner Valley Campground lies just 2.1 kilometers away. Visit during July through September when snowmelt clears high-elevation trails.
Is Hot Springs Valley worth visiting?
Best for
- Warm-water soaking
- Overnight camping trips
The water at Hot Springs Valley is slightly acidic (pH 6.7) with 49 mg/L total dissolved solids.
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Overview Warner Valley campground is a limited development facility in the south eastern area of the park. It has vault toilets and potable water spigots. Numerous trails can be accessed from the campground. Recreation Hiking trails accessible from the campground Facilities Vault toilets - seasonal Natural Features Lassen Volcanic national park is known for its volcanic history, as well as its diversity of plants and animals. It contains 300 active volcanic domes, as well as many hydrotherma...