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Every Hot Spring

Castle Hot Springs

Castle Hot Springs is a resort hot spring near Morristown in Arizona. Water at the source is recorded at 115°F (46°C). Fees and entry: Overnight guests only, ages 18 and over.

115°F46°C recorded at the source
Hot: most people last only minutes at the source. Look for mixing pools.

Castle Hot Springs is a restored historic resort in Morristown, Arizona. The original property opened in 1896 and the historic hotel claims the title of state's first wellness resort.

Facts

Coordinates
33.9827, -112.3620 (Google Maps, OSM)
Source temperature
115°F (46°C)
Access
Resort or commercial
Type
Resort
Fee
Overnight guests only, ages 18 and over
Clothing optional
Not recorded
Nearest town
Morristown
State
Arizona
Data sources
NOAA NCEI, Wikipedia, Wikidata, Official sources (linked below). See sources

Map

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

Quick answers

Can you soak at Castle Hot Springs?
Castle 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 Castle Hot Springs?
The hottest recorded reading at the source is 115°F (46°C). That is the outlet temperature, not a pool temperature; water cools as it flows away from the source.
Is Castle Hot Springs free?
Fees and entry: Overnight guests only, ages 18 and over. Fees change, so confirm before you go.
Where is Castle Hot Springs?
Castle Hot Springs is near Morristown in Arizona, at coordinates 33.9827, -112.3620.
What other hot springs are near Castle Hot Springs?
The closest listed springs, in straight-line distance, are Hot Spring (Yavapai County), under 1 mi; Mitchell Spring, 5 mi; and Spring at 34.45, -112.69, 37 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/Castle_Hot_Springs_(Arizona)
  2. Operator website (castlehotsprings.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
  3. Wikidata: name, county and website, CC0