Unnamed Thermal Spring
In Napa Valley, this 83-degree thermal spring emerges at 600 feet just 15 meters from Hagen Road, creating water 22 degrees warmer than ambient in the world's most prestigious wine region.
The spring flows in a landscape of vineyard-covered slopes and oak-studded hills that define modern Napa Valley. Emerging from the earth, the warm water creates a noticeable contrast to the cooler air. Rows of grapevines march across surrounding hillsides, and stone winery buildings dot the horizon. The Mediterranean climate creates dry, sunny conditions for most of the year.
Napa Valley's thermal springs result from subsurface heat rising through faults in the earth's crust. The region's geology supports both viticulture and geothermal activity, with heat sources that have attracted human use for millennia. The valley's transformation into the world's finest wine region reflects its ideal climate and geology.
The spring's roadside location requires virtually no hiking effort. Year-round access is available at this convenient location. Spring through autumn provides ideal visiting weather. The proximity to wineries and restaurants makes this an easy stop during a broader Napa Valley wine tour.
Is this spring worth visiting?
Best for
- Warm-water soaking
- Easy day trips
- Overnight camping trips
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