Boiling Springs Lake

Plumas County, California · Near Chester
40.4340°N, 121.3990°W · 6,005 ft
190°F 38°F air · Good soaking weather 6,005 ft Open Short Walk National Park Service Camping nearby (0.6 mi)
Very Hot Source, Use Extreme Caution

At 190°F, the source water at Boiling Springs Lake is hot enough to cause burns. Some hot springs this hot have cooler side pools or downstream areas suitable for soaking. Always test the water temperature before entering.

Boiling Springs Lake is a thermal lake in Lassen Volcanic National Park, Plumas County, about thirteen miles from Chester. Near boiling, scalding well beyond the point of harm. This is a place to look at, a national park feature, and no part of it is for getting in. Public access is open.

Location

National Park Service land at six thousand feet. From the nearest road, unnamed in the record, it is a walk of a little over half a mile. Snow here runs to about seventeen feet a year, with nearly four feet of precipitation, so the approach is seasonal. Warner Valley Campground sits the same half mile or so away.

December through February are listed as best months, but at seventeen feet of snow the park road will decide the matter. Warner Valley Campground is right there, a little over half a mile. The lake will scald; stay on whatever route the park marks and keep out of the water entirely. The record lists no fee for the spring itself.

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 Boiling Springs Lake.

Aerial view of the ground around Boiling Springs Lake LiDAR bare-earth view of the same ground around Boiling Springs Lake
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.

Setting
Gentle slope
The ground tilts gently up to the southwest.
Highest ground nearby
187 ft above the spring
Within a quarter mile, to the southwest
Cross-section through the spring

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.

Seen From Space

Landsat's thermal camera passed over on a clear winter day, January 19, 2025. This spring's heat shows up from about 440 miles up. The brightest yellow marks the warmest ground, roughly 27°F warmer than the land around it.

Aerial view of the ground around Boiling Springs Lake Landsat thermal view of the same ground around Boiling Springs Lake
Aerial Thermal

Drag to compare. The view is about 2½ miles across, and each thermal pixel covers roughly 300 feet of ground, so individual pools blur into one warm patch.

Thermal: Landsat 8/9 surface temperature, USGS (public domain), via Microsoft Planetary Computer. Aerial: USGS The National Map. More springs seen from space.

Heat Below
108 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 57% 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
31°
Jan
31°
Feb
34°
Mar
39°
Apr
48°
May
59°
Jun
67°
Jul
67°
Aug
60°
Sep
48°
Oct
37°
Nov
30°
Dec
Annual Precip: 46.7 in Annual Snow: 202.7 in
Best Time to Visit
December Air 30°F · Water 190°F · +160° contrast
January Air 31°F · Water 190°F · +159° contrast
February Air 31°F · Water 190°F · +159° contrast
December offers 37°F more contrast than July
Current Conditions
38°F
E 0.0 mph 65% Good soaking weather
Today 65° Low 43° Sunny 1% precip
Spring is +125° warmer
Wednesday 59° Low 42° Sunny then Slight Chance Light Rain 20% precip
Spring is +131° warmer
Thursday 59° Low 44° Sunny 7% precip
Spring is +131° warmer
Friday 68° Low 48° Sunny
Spring is +122° warmer
Saturday 70° Low 50° Sunny
Spring is +120° warmer
Where to Stay

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Nearby Camping
Warner Valley Campground 0.6 mi away

Overview Warner Valley campground is a limited development facility in the south eastern area of the park. It has vault toilets and potable water spigots. Numerous trails can be accessed from the campground. Recreation Hiking trails accessible from the campground Facilities Vault toilets - seasonal Natural Features Lassen Volcanic national park is known for its volcanic history, as well as its diversity of plants and animals. It contains 300 active volcanic domes, as well as many hydrotherma...

Reservable Yes
Reserve on Recreation.gov →
Mile-High Advisory 6,005 ft

Boiling Springs Lake sits at 6,005 feet above sea level, way above the mile-high mark. You may not feel the altitude strongly, but hot water still dehydrates you faster at elevation. UV is about 24% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
190°F
Warm Hot Boiling
Water Temp 190°F (88°C)
Avg Air Temp 46°F
Above Ambient +144°F
Great soaking conditions September
Access
Open
Road Access Short Walk
Distance to Road 0.6 mi
Land
Ownership Federal
Agency National Park Service
Designation National Park
Unit Lassen Volcanic National Park
Manager National Park Service
Protection 1 - Permanent protection, natural state
Frequently Asked Questions
What is the water temperature at Boiling Springs Lake?
Boiling Springs Lake has a water temperature of 190°F (88°C). This is considered a hot spring, well above body temperature.
Where is Boiling Springs Lake located?
Boiling Springs Lake is located in Plumas County, California at 6,005 feet elevation, near Chester. Coordinates: 40.4340°N, 121.3990°W.
How do I get to Boiling Springs Lake?
Boiling Springs Lake has Short Walk road access (0.6 mi from the road).
Is Boiling Springs Lake free to visit?
Boiling Springs Lake has Open access. It is managed by National Park Service.
Can I camp near Boiling Springs Lake?
Yes, Warner Valley Campground is located nearby (0.6 miles away).
Is it safe to soak at Boiling Springs Lake?
No, not at the source. The water at Boiling Springs Lake reaches 190°F, which can cause severe burns within seconds. Look for cooled side pools or downstream stretches, and test with a hand before anything else.
Sources: OpenStreetMap