La Kisst and María Eugenia are protected mountain wetlands inside San Cristóbal de las Casas, not ordinary city parks. They are important to the city’s water system, flood regulation and native biodiversity.
Quick answer
Federal protected area: Área de Protección de Flora y Fauna Humedales de Montaña La Kisst y María Eugenia
Federal decree: January 8, 2024
Combined protected area: 215.70 hectares
Why they matter: water capture, aquifer recharge, local hydrological regulation and habitat
Flagship endemic species: the endangered popoyote of San Cristóbal (Tlaloc hildebrandi)
Two wetlands, one federal protected area
The federal protected area combines Humedales de Montaña La Kisst and Humedales de Montaña María Eugenia.
CONANP records the federal decree date as January 8, 2024 and the protected surface as 215.70 hectares within the municipality of San Cristóbal de las Casas.
Both wetlands also have a longer conservation history: La Kisst and María Eugenia were designated Ramsar wetlands before the later federal protected-area decree.
Why the wetlands matter to San Cristóbal
CONANP identifies several direct environmental services from the protected area:
- water capture;
- aquifer recharge;
- local hydrological regulation;
- maintenance of soil moisture and water quality;
- habitat for native wildlife.
The wetlands therefore provide part of the San Cristóbal valley’s ecological infrastructure.
The popoyote of San Cristóbal
One of the most locally distinctive species is Tlaloc hildebrandi, commonly called the popoyote of San Cristóbal.
CONANP’s July 2026 monitoring update describes it as a micro-endemic fish of Los Altos de Chiapas in danger of extinction. Current conservation work includes biological monitoring and control of invasive species because urban pollution and competition from exotic species threaten its survival.
Current conservation pressure
The protected status does not mean the wetlands are free from pressure. During 2026, CONANP and PROFEPA reported enforcement actions involving unauthorized fill, machinery, construction and drainage work inside the protected polygon.