Réserve de biosphère El Pinacate et le Grand désert d’Altar

Photo : Presidencia de la República Mexicana (CC BY 2.0)

Located in northwestern Mexico on the border with the United States, this biosphere reserve encompasses a vast volcanic and desert landscape characterized by distinctive volcanic cones, lava flows, and expansive sand dunes. The site represents a significant example of Sonoran Desert ecosystem, featuring unique geological formations including the El Pinacate volcanic field with its prominent crater lakes. The reserve protects diverse flora and fauna adapted to extreme arid conditions, including species found nowhere else in the world and serves as critical habitat for migratory birds and wildlife corridors. The landscape demonstrates the dynamic interplay between volcanic activity and aeolian processes that have shaped the terrain over geological timescales. The biosphere reserve functions as an important area for scientific research into desert ecology and conservation of biodiversity in one of North America's most extreme environments. Its recognition reflects the need to preserve this distinctive natural system and the ecological processes that sustain life in this harsh desert region.