Hot spring

Upper Warm Spring

California

Current status: not known to us. Conditions change: check with the local land manager before you go.

The details that matter

Fee: Not recorded yet Know this? Tell us with an official link.
Season: Not recorded yet Know this? Tell us with an official link.
Clothing policy: Not recorded yet Know this? Tell us with an official link.
Status: Not recorded yet Know this? Tell us with an official link.
Developed pools: YesPer OpenStreetMap, 2026-10-15 · record

Sources

Location 36.832232, -117.737852. Source: OpenStreetMap, 2026-10-15 · Wikidata Q49739232 · Location matches “Upper Warm Spring” in NOAA's 1980 thermal springs list (0.3 km) · merged 1 duplicate map point. Map data © OpenStreetMap contributors.

More soaks nearby

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Crystal PoolCalifornia · 2.7 mi Details not recorded yet Children's TubCalifornia · 2.7 mi Details not recorded yet

Before you soak

Information only, not safety advice. Conditions, access, fees and closures change without notice, and water temperature and quality are not monitored by us. You soak at your own risk: check the official status link and posted rules on site before you go. We accept no liability for injury, loss or trespass.

Naegleria fowleri, a rare but nearly always fatal brain-infecting ameba, “thrives in warm freshwater lakes, rivers, and hot springs.” CDC advice: “Always keep your head above water in hot springs.” CDC, Naegleria fowleri Infections (page dated July 21, 2025) · checked 2026-10-15

Thermal water can scald. In Yellowstone, “Burns from thermal features are a common cause of serious injury and death in the park” and “it is illegal to swim or bathe in any water that is entirely of thermal origin.” We exclude springs inside Yellowstone, Lassen Volcanic and Hawaiʻi Volcanoes national parks. US National Park Service, Yellowstone safety page · checked 2026-10-15