La Azufrosa (Sources de Soufre)
- Location
- La Azufrosa, Nuevo Leon, Mexico
- Water type
- sulfurous
- Temperature
- 42 °C
- pH
- 6.5
Water profile
Relaxing — deep, immediate muscle release.
Rich in active gases or metals — a strong mineral character.
Soft water — natural, classic buoyancy.
La Azufrosa, meaning the sulfurous source, is a natural thermal spring site in the Coahuila-Nuevo León border region of northeastern Mexico, where bicarbonate-mineral waters emerge in the Chihuahuan Desert landscape of the Coahuila highlands and have been known since colonial times. The springs are part of the broader geothermal context of the Sierra Madre Oriental, where faulting and hydrothermal activity have created numerous spring sites across the arid mountain landscape of northeastern Mexico. The desert landscape of Coahuila, with its enormous biosphere reserves protecting Chihuahuan Desert flora and endemic species, and its significant archaeological sites including cave art from the ancient Coahuiltecan peoples, provides an archaeologically and ecologically rich backdrop for the thermal spring experience.