Iridat Spring

Merced County, California · Near Los Banos
36.7730°N, 120.8980°W · 1,198 ft
73°F 70°F air · Good soaking weather 1,198 ft Roadside
Aerial view of the ground around Iridat Spring LiDAR bare-earth view of the same ground around Iridat 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.

Iridat Spring is a warm seep in Merced County, twenty miles out from Los Banos, at low elevation. The water is tepid, a bit above seventy, nothing you would soak in. Landowner and access status are both blank.

Location
5 miles from South Dos Palos, CA

Roadside, two hundred feet off an unnamed road. It sits around twelve hundred feet in dry country: eleven inches of precipitation most years, no snow ever. There is no campground in the record for it. Nothing on file says how the water surfaces or what, if anything, collects it.

Winter months are listed as best. Nothing on file establishes who owns the land or if you can visit. Chemistry and photograph are absent. Nothing on fees.

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 Iridat Spring.

Setting
Hillside
The spring sits on a steep slope that climbs to the west.
Highest ground nearby
429 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
81 milliwatts per square meter of heat flow

That's close to the US average of 65. It's higher than at 17% 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
50°
Jan
52°
Feb
55°
Mar
60°
Apr
65°
May
74°
Jun
79°
Jul
78°
Aug
74°
Sep
67°
Oct
56°
Nov
49°
Dec
Annual Precip: 11.0 in Annual Snow: 0.1 in
Best Time to Visit
December Air 49°F · Water 73°F · +24° contrast
January Air 50°F · Water 73°F · +23° contrast
February Air 52°F · Water 73°F · +22° contrast
December offers 30°F more contrast than July
Current Conditions
70°F
SE 18.0 mph 32% Good soaking weather
Tuesday 89° Low 65° Sunny
Wednesday 85° Low 62° Sunny
Thursday 84° Low 59° Sunny
Friday 88° Low 64° Sunny
Saturday 89° Low 66° Sunny
Temperature
73°F
Warm Hot Boiling
Water Temp 73°F (23°C)
Avg Air Temp 63°F
Above Ambient +10°F
Mild soaking conditions September
Access
Road Access Roadside
Distance to Road 202 ft
Frequently Asked Questions
What is the water temperature at Iridat Spring?
Iridat Spring has a water temperature of 73°F (23°C). This is a warm thermal spring.
Where is Iridat Spring located?
Iridat Spring is located in Merced County, California at 1,198 feet elevation, near Los Banos. Coordinates: 36.7730°N, 120.8980°W.
How do I get to Iridat Spring?
Iridat Spring has Roadside road access (202 ft from the road).