White Sulphur Springs (California)
Drag the handle to compare the two views. The orange dot marks the spring, in a frame about three quarters of a mile wide.
White Sulphur Springs in Napa County sits less than a mile outside Saint Helena and was, by Wikipedia's account, the oldest warm mineral springs resort in Northern California, founded in 1852. No temperature is on file for the current record. The USGS sampled the water in 2004 and found it alkaline and mineral-heavy, with iron among the dissolved load. Access and ownership are not recorded.
A road passes within about 160 feet. The elevation is low, around three hundred feet, on the ground near the town. Rain runs to two feet or so a year, concentrated in winter, and snow is not a thing here. The nearest campground listed is fourteen miles off at Oak Shores, which the name says is for day use.
No best months are listed. Roadside access, so a look needs no walk. Because no temperature is on record you cannot plan a soak from this page; the 2004 chemistry is the most recent firm data. Ask in Saint Helena about the property's current status, since the record does not say what stands there now. No fee on file.
Founded in 1852 in St. Helena, White Sulphur Springs was regarded as Northern California's oldest warm mineral springs resort facility. The USGS maintains a sampling site there.
Aircraft with laser scanners measured this ground to within inches. The scan strips out trees and buildings, leaving the bare shape of the land around White Sulphur Springs (California).
- Setting
- Hillside
- The spring sits on a steep slope that climbs to the west.
- Highest ground nearby
- 481 ft above the spring
- Within a quarter mile, to the west
A slice through the ground from northwest to southeast, about 0.6 miles end to end.
Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.
That's about 3 times the US average of 65. It's higher than at 99% of the springs on this site.
Heat flow measures the warmth working its way up through the ground from deep inside the earth. Where it runs high, rain and snowmelt that seep down through cracks in the rock come back up hot.
See every spring on the geothermal heat map →
Heat flow estimate: Stanford Thermal Earth Model (Aljubran & Horne, 2024), CC BY 4.0.
The water at White Sulphur Springs (California) is alkaline (pH 8.7) with 750 mg/L total dissolved solids. It is notably rich in chloride (natural antiseptic with skin health benefits).
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Overview Nestled between Blue Ridge and Cedar Roughs east of Napa Valley, Lake Berryessa provides ample public recreation opportunities. Popular activities on and around the large, yet uncrowded lake include fishing, boating, water skiing, wake boarding, jet skiing, sailing, swimming, kayaking, canoeing, wildlife viewing, hiking, biking and picnicking. The Dufer Point Visitor Center offers year-round interpretive events and exhibits highlighting natural and cultural resources. Lake Berrye...
White Sulphur Springs (California) is road-accessible, so you can bring more gear.
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Springs Near White Sulphur Springs (California)
Alkaline Springs (pH ~8.7)
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