Campbell Hot Springs

Plumas County, California · Near Portola
39.5730°N, 120.3480°W · 5,174 ft
111°F 5,174 ft Roadside Camping nearby (2.4 mi)
Aerial view of the ground around Campbell Hot Springs LiDAR bare-earth view of the same ground around Campbell Hot Springs
Aerial LiDAR bare earth

Drag the handle to compare the two views. The orange dot marks the spring, in a frame about three quarters of a mile wide.

Campbell Hot Springs, also known as Sierra Hot Springs, is a resort spring complex. The record places it in Plumas County, about nineteen miles from Portola, while Wikipedia puts it in Sierra County a mile and a half from Sierraville. Temperature on record: hot, a notch past comfortable. Public access is not on file.

Location

Campbell Hot Springs Road runs within about two hundred feet. Elevation is a little over five thousand feet, and winters deliver about ten feet of snow, which makes the road itself a seasonal question. Cottonwood Creek campground is close, a couple of miles. No public land unit is attached, consistent with a privately run resort.

Winter months are listed, with ten feet of snow to plan around. Cottonwood Creek is where the record sends campers. USGS chemistry from 2008 has the water slightly alkaline with modest dissolved solids. At this temperature most people want to ease in. Expect resort terms and fees; none are recorded here.

History of Campbell Hot Springs

Wikipedia says the springs were turned into a resort in the 1880s and the community was founded around it as a thermal resort. It carries the name Sierra Hot Springs as well.

Terrain

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 Campbell Hot Springs.

Setting
Hillside
The spring sits on a steep slope that climbs to the west.
Highest ground nearby
233 ft above the spring
Within a quarter mile, to the west
Cross-section through the spring

A slice through the ground from west to east, about 0.6 miles end to end.

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Heat Below
123 milliwatts per square meter of heat flow

That's about twice the US average of 65. It's higher than at 73% 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.

Heat flow estimate: Stanford Thermal Earth Model (Aljubran & Horne, 2024), CC BY 4.0.

Monthly Climate
32°
Jan
33°
Feb
37°
Mar
43°
Apr
52°
May
63°
Jun
71°
Jul
70°
Aug
63°
Sep
51°
Oct
39°
Nov
31°
Dec
Annual Precip: 31.3 in Annual Snow: 120.9 in
Best Time to Visit
December Air 31°F · Water 111°F · +81° contrast
January Air 32°F · Water 111°F · +79° contrast
February Air 33°F · Water 111°F · +78° contrast
December offers 41°F more contrast than July
Water Chemistry Sampled 2008-09-16

The water at Campbell Hot Springs is slightly alkaline (pH 7.5) with 161 mg/L total dissolved solids.

pH 7.5 Slightly Alkaline
pH influences mineral absorption through skin
Higher mineral concentration for therapeutic soaking
Calcium 22 mg/L
May support bone density and joint health
Magnesium 10 mg/L
Known for muscle relaxation and stress relief
Sodium 7 mg/L
Supports circulation and skin hydration
Sulfate 0 mg/L
Traditionally used for skin conditions and inflammation
Chloride 0 mg/L
Natural antiseptic with skin health benefits
Where to Stay

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Nearby Camping
Cottonwood Creek 2.4 mi away

Overview Cottonwood Creek Campground is located on Highway 89, four miles south of Sierraville. Its location makes it a great base camp for a variety of recreational activities, including fishing, hunting, hiking and biking. This facility is operated and maintained by Lake Tahoe Hospitality LLC for the Tahoe National Forest.Recreation Cottonwood Creek Botanical Trail and Overlook Trail are both short, foot trails that begin in the campground. The surrounding area offers additional trails and...

Reservable Yes
Reserve on Recreation.gov →
Temperature
111°F
Warm Hot Boiling
Water Temp 111°F (44°C)
Avg Air Temp 49°F
Above Ambient +62°F
Good soaking conditions September
Access
Road Access Roadside
Nearest Road Campbell Hot Springs Road
Distance to Road 194 ft
Frequently Asked Questions
What is the water temperature at Campbell Hot Springs?
Campbell Hot Springs has a water temperature of 111°F (44°C). This is considered a hot spring, well above body temperature.
Where is Campbell Hot Springs located?
Campbell Hot Springs is located in Plumas County, California at 5,174 feet elevation, near Portola. Coordinates: 39.5730°N, 120.3480°W.
How do I get to Campbell Hot Springs?
Campbell Hot Springs has Roadside road access, with the nearest road being Campbell Hot Springs Road (194 ft from the road).
Can I camp near Campbell Hot Springs?
Yes, Cottonwood Creek is located nearby (2.4 miles away).
What minerals are in the water at Campbell Hot Springs?
Water chemistry analysis shows the presence of pH, Total Dissolved Solids, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 7.5 (slightly alkaline). Total dissolved solids measure 161 mg/L.
Is it safe to soak at Campbell Hot Springs?
With care. At 111°F Campbell Hot Springs is hot enough to need short sessions, fifteen to twenty minutes, and plenty of water. Enter slowly and get out if you feel light-headed.