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Every Hot Spring

Gamma Hot Springs

Gamma Hot Springs is a geothermal spring in Snohomish County, Washington. Water at the source is recorded at 140°F (60°C), hot enough to scald.

140°F60°C recorded at the source
Scalding at the source. Do not enter without a cooled, mixed pool.

Very remote hot spring pool

Facts

Coordinates
48.1526, -121.0636 (Google Maps, OSM)
Source temperature
140°F (60°C)
Access
Unknown
Type
Unknown
Fee
Not recorded
Clothing optional
Not recorded
Nearest town
Not recorded
Data sources
NOAA NCEI, OpenStreetMap, Wikipedia, Wikidata. See sources

Map

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

Quick answers

How hot is Gamma Hot Springs?
The hottest recorded reading at the source is 140°F (60°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 Gamma Hot Springs?
Gamma Hot Springs is in Snohomish County, Washington, at coordinates 48.1526, -121.0636.
What other hot springs are near Gamma Hot Springs?
The closest listed springs, in straight-line distance, are Kennedy Hot Spring, 6 mi; Sulphur Hot Springs, 9 mi; and Sulphur Creek Hot Springs, 9 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
  2. OpenStreetMap: mapped feature and its tags, ODbL
  3. Wikipedia: short description, CC BY-SA 4.0
  4. Wikidata: name, county and website, CC0