Coalinga Mineral Springs

Fresno County County, California · Near Coalinga
36.1440°N, 120.5550°W
112°F Open Roadside SFW

Coalinga Mineral Springs reaches 112 degrees Fahrenheit along Coalinga Mineral Springs Road in western Fresno County. Located on state-managed land designated for public access, this readily accessible spring has attracted visitors for generations seeking the therapeutic benefits of naturally heated mineral water.

The spring flows just roadside in the coastal ranges' transitional landscape where oak woodlands give way to chaparral. The setting emphasizes accessibility with nearby parking and minimal approach distance, allowing easy viewing of thermal discharge in a semi-arid foothill environment receiving moderate winter precipitation.

History of Coalinga Mineral Springs

Coalinga Mineral Springs reflects the Coast Ranges geothermal system developed along fault zones cutting through Mesozoic rocks. The spring's name derives from local heritage; historical use by indigenous peoples preceded 19th-century development as a therapeutic resort destination in this remote inland region.

Park directly at the roadside pullout with easy spring access. The 50-degree elevation above ambient temperature permits safe approach with standard thermal feature precautions. Fresno County's interior climate offers mild springs and falls; summer visits are possible but potentially crowded. Nearest overnight services are in Coalinga town, 15 miles south.|

Is Coalinga Mineral Springs worth visiting?

Best for

  • Hot spring soaking
  • Easy day trips
Coalinga Mineral Springs offers an accessible hot spring experience — great for a day trip.
Monthly Climate
48°
Jan
49°
Feb
52°
Mar
59°
Apr
64°
May
74°
Jun
78°
Jul
78°
Aug
74°
Sep
65°
Oct
54°
Nov
47°
Dec
Annual Precip: 11.3 in Annual Snow: 0.4 in
Best Time to Visit
December Air 47°F · Water 112°F · +65° contrast
January Air 48°F · Water 112°F · +64° contrast
February Air 49°F · Water 112°F · +63° contrast
December offers 31°F more contrast than August
What to Bring
Swimsuit & towel
Water bottle Stay hydrated, especially in hot water
Trash bag Pack out what you pack in
Water shoes Hot ground near source
References
USGS Quad: SHERMAN PEAK 7.5 · PP 492: 133.0 · NOAA: 6.0 · AMS Map: SANTA CRUZ
Frequently Asked Questions
What is the water temperature at Coalinga Mineral Springs?
Coalinga Mineral Springs has a water temperature of 112°F (44°C). This is considered a hot spring, well above body temperature.
Where is Coalinga Mineral Springs located?
Coalinga Mineral Springs is located in Fresno County, California, near Coalinga. Coordinates: 36.1440°N, 120.5550°W.
How do I get to Coalinga Mineral Springs?
Coalinga Mineral Springs has Roadside road access, with the nearest road being Coalinga Mineral Springs Road (268 ft from the road).
Is Coalinga Mineral Springs free to visit?
Coalinga Mineral Springs has Open access. It is managed by SFW.
Is it safe to soak at Coalinga Mineral Springs?
At 112°F, Coalinga Mineral Springs is hot enough to require caution. Enter slowly, limit soaking sessions to 15–20 minutes, and stay hydrated. Always tell someone your plans before visiting remote hot springs.
Is Coalinga Mineral Springs crowded?
Coalinga Mineral Springs is accessible from a paved road, making it easy to reach. Weekends and holidays may be busier — consider visiting on a weekday for a quieter experience.
What should I bring to Coalinga Mineral Springs?
Essentials for Coalinga Mineral Springs: swimsuit, towel, water bottle, a trash bag to pack out what you pack in. The water is over 110°F — test the temperature before entering and watch for scalding near the source.
Temperature
112°F
Warm Hot Boiling
Water Temp 112°F (44°C)
Avg Air Temp 62°F
Above Ambient +50°F
Great soaking conditions March
Access
Open
Road Access Roadside
Nearest Road Coalinga Mineral Springs Road
Distance to Road 268 ft
Land
Ownership State
Agency SFW
Designation SREC
Unit Coalinga Mineral Springs Public Access
Manager SFW
Protection 4 - No known protection