Carlsbad Spring
Carlsbad Spring flows 76 degrees Fahrenheit from Lake County's volcanic terrain, positioned just 45 feet from Penson Court with convenient roadside access. Water rises 17.5 degrees above ambient temperature in a mild foothill climate receiving moderate winter precipitation.
The spring occupies a 2,140-foot elevation site where oak woodland transitions to mixed chaparral. Nearby Lake Sonoma creates a landscape of rolling terrain with seasonal water sources, and the surrounding wine country infuses the area with cultural history and human settlement patterns.
Lake County's geothermal springs reflect Quaternary volcanism and fault-controlled heat flow. This modest spring produced low TDS water (161 mg/L) typical of dilute systems, with calcium and magnesium concentrations suggesting basalt-hosted geothermal reservoirs.
Roadside parking makes this spring highly accessible year-round. Lake Sonoma Recreation Area lies 28 kilometers away for picnicking. Visit in spring for wildflower displays or autumn for comfortable temperatures among the surrounding vineyards and oak grasslands.|
Is Carlsbad Spring worth visiting?
Best for
- Easy day trips
- Overnight camping trips
Some links are affiliate links. We may earn a commission at no extra cost to you.
Overview Warm Springs Recreation Area is a day-use park located at Lake Sonoma, which is just a 45 minute drive north of Santa Rosa and a 2 hour trip from San Francisco. There is no overnight camping available at this facility World famous vineyards and a land rich in history surround the lake, where visitors enjoy boating, fishing and exploring the area's extensive trail network.Recreation The Woodland Ridge Nature Trail begins at the park and winds up the ridge, rewarding hikers with great...