St Helena White Sulphur Spring
Drag the handle to compare the two views. The orange dot marks the spring, in a frame about three quarters of a mile wide.
A warm sulphur spring at the edge of Saint Helena in the Napa Valley, and a USGS monitoring point with water chemistry on file. The water is about body temperature, pleasant, mild. White Sulphur Spring Road runs past it within arm's reach. Public access and ownership are blank in the record, and in a town like this that is worth settling before you show up.
Low elevation, a few hundred feet up, in a valley that sees no snow and a wet winter. The spring is at the very lip of White Sulphur Spring Road, one foot from it according to the mapping. Nobody is listed as land manager, and No unit and designation is on record too. A 2004 sample found a noticeably alkaline water carrying sodium, sulfate, chloride and iron, with dissolved solids in the moderate range.
Winter months are the listed window, and with no snow to speak of the road stays open all year. Roadside access. The nearest camping in our data is the Oak Shores day use area, fifteen miles away, and a day use area will not let you stay the night. The chemistry figures date to a 2004 sample. Access is not on record.
The USGS keeps this spring on its books as a thermal monitoring site, with a chemistry sample from October 2004 on file.
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 St Helena White Sulphur Spring.
- Setting
- Canyon floor
- Steep ground climbs away on both sides of the spring.
- Highest ground nearby
- 544 ft above the spring
- Within a quarter mile, to the north
A slice through the ground from north to south, 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 St Helena White Sulphur Spring 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...
St Helena White Sulphur Spring is road-accessible, so you can bring more gear.
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