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Every Hot Spring

Mount Adams Fumaroles

Mount Adams Fumaroles is a geothermal spring in Washington. Water at the source is recorded at 150°F (66°C), hot enough to scald.

150°F66°C recorded at the source
Scalding at the source. Do not enter without a cooled, mixed pool.

Facts

Coordinates
46.2020, -121.4920 (Google Maps, OSM)
Source temperature
150°F (66°C)
Access
Unknown
Type
Unknown
Fee
Not recorded
Clothing optional
Not recorded
Nearest town
Not recorded
Data sources
NOAA NCEI. See sources

Map

Larger marker is Mount Adams Fumaroles; smaller markers are other springs within 50 miles.

Quick answers

How hot is Mount Adams Fumaroles?
The hottest recorded reading at the source is 150°F (66°C). That is the outlet temperature, not a pool temperature; water cools as it flows away from the source. Water this hot can cause serious burns, so test any pool by hand first.
Where is Mount Adams Fumaroles?
Mount Adams Fumaroles is in Washington, at coordinates 46.2020, -121.4920.
What other hot springs are near Mount Adams Fumaroles?
The closest listed springs, in straight-line distance, are Orr Creek Warm Springs, 11 mi; Fish Hatchery Warm Spring, 19 mi; and Packwood Hot Spring, 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.

Merged from

  1. NOAA NCEI Thermal Springs List (archived 2025): survey location and source temperature, public domain