Skip to content
Every Hot Spring

Mercey Hot Springs

Mercey Hot Springs is a resort hot spring near Firebaugh in Fresno County, California. Water at the source is recorded at 119°F (48°C). Fees and entry: Day use and overnight stays include pool access.

119°F48°C recorded at the source
Hot: most people last only minutes at the source. Look for mixing pools.

Mercey Hot Springs (formerly Mercy Hot Springs) is an unincorporated community and historical hot springs resort in the Little Panoche Valley of Fresno County, central California, about 60 miles (97 km) west-southwest of Fresno.

Facts

Coordinates
36.7030, -120.8600 (Google Maps, OSM)
Source temperature
119°F (48°C)
Access
Resort or commercial
Type
Resort
Fee
Day use and overnight stays include pool access
Clothing optional
Not recorded
Nearest town
Firebaugh
Data sources
NOAA NCEI, Wikipedia, Official sources (linked below). See sources

Map

Larger marker is Mercey Hot Springs; smaller markers are other springs within 50 miles.

Quick answers

Can you soak at Mercey Hot Springs?
Mercey Hot Springs is a resort or commercial operation, so soaking is on the operator’s terms. Check the operator’s website for hours, prices and reservations.
How hot is Mercey Hot Springs?
The hottest recorded reading at the source is 119°F (48°C). That is the outlet temperature, not a pool temperature; water cools as it flows away from the source.
Is Mercey Hot Springs free?
Fees and entry: Day use and overnight stays include pool access. Fees change, so confirm before you go.
Where is Mercey Hot Springs?
Mercey Hot Springs is near Firebaugh in Fresno County, California, at coordinates 36.7030, -120.8600.
What other hot springs are near Mercey Hot Springs?
The closest listed springs, in straight-line distance, are Spring at 36.77, -120.90, 5 mi; Iridat Spring, 5 mi; and Spring in Oneill Forebay, 28 mi.

Before you go

  • Temperatures are measured at the source and can be far hotter than any soaking pool. Test with a hand before stepping in.
  • Access, fees, and road conditions change. Verify with the land manager or owner; "public" here reflects survey records, not a current right of entry.
  • Water in natural springs is untreated. Keep your head above water and avoid soaking with open wounds. Some springs carry Naegleria fowleri risk.
  • Pack out everything, including soap residue. Many springs have been closed because of trash and overcrowding.

Sources

Dataset last rebuilt October 11, 2026. Not yet checked on site by a person. Access, fee, clothing and closure details appear only when a source below states them. How this data is built.

Checked against

  1. Wikipediaen.wikipedia.org/wiki/Mercey_Hot_Springs
  2. Operator website (merceyhotsprings.com)

Merged from

  1. NOAA NCEI Thermal Springs List (archived 2025): survey location and source temperature, public domain
  2. Wikipedia: short description, CC BY-SA 4.0