Wilbur Springs
Wilbur Springs flows at 153 degrees Fahrenheit in Lake County's rugged terrain at 1,721 feet elevation, just 2.7 meters from the nearest road. Formerly known as Simmons Hot Springs, this historically developed spa continues operation and flows 90.2 degrees above ambient temperatures in coastal mountain climate that averages 62.8 degrees Fahrenheit annually.
The spring emerges in chaparral-covered hills northwest of Clearlake in the interior Coast Ranges. Dense scrub vegetation and rocky outcroppings characterize the landscape immediately surrounding the thermal feature. The nearby road provides direct access, yet the landscape retains a somewhat wild character with limited development visible from the spring itself.
Wilbur Hot Springs was developed as a spa facility in the 19th century, operating under the earlier name Simmons Hot Springs before adopting its current identity. In 1970s, therapist Richard Louis Miller acquired the property and established it as a spa resort and personal retreat. The elevated temperature and proximity to population centers made it valuable for historical resort development and continues to attract visitors seeking thermal experiences.
Access is roadside and straightforward, requiring no hiking or technical travel. The water temperature reaches extremely hot levels (153°F), dangerous for immediate immersion and requiring careful cooling or extremely brief contact. Respect private property and operational hours. Best visits align with spring and fall temperatures when air temperatures create more comfortable thermal contrasts.
Is Wilbur Springs worth visiting?
Best for
- Observing powerful hot springs
- Easy day trips
- Overnight camping trips
Not ideal for
- Casual soaking
The water at Wilbur Springs is slightly acidic (pH 6.7).
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Overview This location is available on a first-come, first-served basis only. Visitors are required to physically arrive at the campground to purchase and claim a site.Once on-site, you are able to pay for your campsite(s) by scanning a QR code using the Recreation.gov mobile app, and the Scan and Pay feature.In order to utilize Scan & Pay on site, you will need to first download the free Recreation.gov mobile app https://www.recreation.gov/mobile-app prior to your arrival as some remote area...