Grizzly Spring

Lake County, California · Near Clearlake
39.0020°N, 122.4980°W · 1,311 ft
68°F 68°F air · Good soaking weather 1,311 ft Roadside Camping nearby (20.1 mi)

Grizzly Spring is a barely warm spring in Lake County, eight miles out of Clearlake. The temperature on file is below seventy, so this is a cool mineral seep more than a soak. It sits next to a road. Ownership and access are not on record.

Location
14 miles from Clearlake Oaks, CA

Eighty-odd feet off a road with no name on file. Modest elevation in the Clear Lake hills, rain near twenty-two inches yearly, snow a trace, temperatures averaging in the low sixties. Little Stony is the only camp on record, twenty miles off. Roadside access, so the walk is nothing.

Midwinter is listed as best. Since access and ownership are blank, confirm you are allowed there before stopping. Fees and chemistry are both unrecorded. The water will feel cool; it does not reach the warmth of a bath, and nothing on file says what minerals it carries. Treat the temperature as a survey figure, with no date attached.

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 Grizzly Spring.

Aerial view of the ground around Grizzly Spring LiDAR bare-earth view of the same ground around Grizzly Spring
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
Canyon floor
Steep ground climbs away on both sides of the spring.
Highest ground nearby
350 ft above the spring
Within a quarter mile, to the north
Cross-section through the spring

A slice through the ground from southwest to northeast, about 0.6 miles end to end.

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

Heat Below
169 milliwatts per square meter of heat flow

That's about 2½ times the US average of 65. It's higher than at 96% 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
48°
Jan
49°
Feb
52°
Mar
58°
Apr
65°
May
75°
Jun
80°
Jul
80°
Aug
74°
Sep
65°
Oct
53°
Nov
47°
Dec
Annual Precip: 21.8 in Annual Snow: 4.0 in
Best Time to Visit
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 33°F more contrast than August
Current Conditions
68°F
NNW 7.2 mph 25% Good soaking weather
Tuesday 90° Low 58° Sunny
Wednesday 82° Low 56° Sunny 7% precip
Thursday 82° Low 54° Sunny
Friday 91° Low 57° Sunny
Saturday 91° Low 59° Sunny
Where to Stay

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Nearby Camping
Little Stony 20.1 mi away

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...

Reservable Yes
Reserve on Recreation.gov →
Temperature
68°F
Warm Hot Boiling
Water Temp 68°F (20°C)
Avg Air Temp 62°F
Above Ambient +6°F
Mild soaking conditions September
Access
Road Access Roadside
Distance to Road 82 ft
Frequently Asked Questions
What is the water temperature at Grizzly Spring?
Grizzly Spring has a water temperature of 68°F (20°C). This is a warm thermal spring.
Where is Grizzly Spring located?
Grizzly Spring is located in Lake County, California at 1,311 feet elevation, near Clearlake. Coordinates: 39.0020°N, 122.4980°W.
How do I get to Grizzly Spring?
Grizzly Spring has Roadside road access (82 ft from the road).
Can I camp near Grizzly Spring?
Yes, Little Stony is located nearby (20.1 miles away).