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Castle Hot Springs

Morristown, Maricopa County, Arizona, United States
Castle Hot Springs
Location
Morristown, Maricopa County, Arizona, United States
Water type
iron-rich
Temperature
38 °C
pH
6.3

Water profile

Thermicity
Neutral
38 °C
LowHigh

Soothing — neither hot nor cold, perfect balance.

Mineralisation
Bio-active
LowHigh

Rich in active gases or metals — a strong mineral character.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

FerBicarbonatesManganèse

Arizona's first wellness resort, Castle Hot Springs opened in 1896 in Morristown, founded by entrepreneur Frank M. Murphy, brother of the sitting territorial governor. Listed on the National Register of Historic Places, the property enjoyed its golden age in the 1920s, hosting the likes of writer Zane Grey and the Rockefeller family, while Theodore Roosevelt stayed there in 1911 while overseeing construction of the nearby dam. A young John F. Kennedy later spent three months recovering there after the sinking of PT-109.

Closed after a fire destroyed the main building in 1976, the estate underwent a full restoration announced in 2018 and reopened in February 2019. The reborn resort now features twelve spring-fed bungalows with hot-spring tubs and seventeen sky-view cabins, carrying forward the quiet, exclusive retreat spirit that first made it famous.

Insider tip — Surrounded by Sonoran Desert saguaro cacti and rugged granite outcrops north of Phoenix, Castle Hot Springs has been welcoming guests since 1896. The iron-tinged waters pool in lush riparian gardens that feel improbable in the arid desert canyon. Visit in winter when the desert wildflowers are in bloom and the temperatures invite long soaking.
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Frequently asked questions

How hot is the water?
The water is neutral here, around 38 °C — a perfect balance, neither too hot nor too cold.
What type of water is found here?
This spot features iron-rich water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).