| Alvarado Hot Springs | |
|---|---|
 The Pomona Progress Bulletin, Feb. 6, 1926 | |
 | |
| Location | Puente Hills, Los Angeles County, California, U.S. |
| Coordinates | 33°58′55″N 117°53′18″W / 33.98194°N 117.88833°W |
| Type | geothermal |
| Temperature | 44 °C (111 °F)[1] |
| Depth | 1,525 metres (5,003 ft)[1] |
Alvarado Hot Springs was a 20th-century geothermal well in Los Angeles County, California, United States. A bathhouse was built next to the water and a therapeutic spa was operated on the site for several decades.
- ^ a b Higgins, Chris T.; Therberge, Albert E. Jr.; Ikelman, Joy A. (1980). Geothermal Resources of California (PDF) (Map). NOAA National Geophysical Center. Sacramento: California Department of Mines and Geology.