File:M 3912260 ne 10 060 20220524.tif — public domain
Sulphur Spring emerges at a modest 68°F in a northern California interior valley, sitting just 5.9 degrees above ambient temperature within a state conservation area.
The spring flows at 1,454 feet elevation through oak and grassland habitat along Walker Ridge Road, accessible via a short walk through regional water district land designated for conservation and wildlife protection.
History of Sulphur Spring
Located in Lake County near Clearlake Oaks, this thermal feature lies on permanently protected land managed by California Department of Fish and Wildlife, with water chemistry typical of regional volcanic activity.
The Indian Valley Wildlife Area provides public access year-round on a first-come basis. Nearest camping is at Little Stony Campground, 22.5 kilometers away. Best visited during mild months; cool water ideal for quick dips.
Is Sulphur Spring worth visiting?
Sulphur Spring is well suited for overnight camping trips.
Annual Precip: 23.1 in
Annual Snow: 5.9 in
January
Air 48°F · Water 68°F · +21° contrast
December
Air 47°F · Water 68°F · +21° contrast
February
Air 49°F · Water 68°F · +19° contrast
January offers 34°F more contrast than July
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...
Reserve on Recreation.gov →
Swimsuit & towel
Water bottle
Stay hydrated, especially in hot water
Camping gear
Nearby camping at Little Stony
Trash bag
Pack out what you pack in
8 miles from Clearlake Oaks, CA
USGS Quad: CLEARLAKE OAKS 15 · NOAA: 8.0 · AMS Map: UKIAH
What is the water temperature at Sulphur Spring?
Sulphur Spring has a water temperature of 68°F (20°C). This is a warm thermal spring.
Where is Sulphur Spring located?
Sulphur Spring is located in Lake County, California at 1,454 feet elevation, near Clearlake Oaks. Coordinates: 39.0880°N, 122.5250°W.
How do I get to Sulphur Spring?
Sulphur Spring has Short Walk road access, with the nearest road being Walker Ridge Road (0.4 mi from the road).
Is Sulphur Spring free to visit?
Sulphur Spring has Open access. It is managed by RWD.
Can I camp near Sulphur Spring?
Yes, Little Stony is located nearby (14.0 miles away).
Is it safe to soak at Sulphur Spring?
Sulphur Spring is generally safe for soaking at its recorded temperature. Always tell someone your plans before visiting remote hot springs.
Is Sulphur Spring crowded?
Sulphur Spring sees varying levels of visitors depending on the season and day of the week.
What should I bring to Sulphur Spring?
Essentials for Sulphur Spring: swimsuit, towel, water bottle, camping gear, a trash bag to pack out what you pack in.