Montañas del Oriente Biosphere Reserve is a vast protected area in the eastern Sierra Madre de Oaxaca, known for its rugged mountainous terrain, rich biodiversity, and vital conservation role within Mexico's tropical and temperate forest ecosystems.
The Montañas del Oriente Biosphere Reserve spans over 113,000 hectares of diverse landscapes in the eastern Sierra Madre de Oaxaca, Oaxaca state, Mexico. Characterized by steep mountains, deep ravines, and dense forests, this reserve encompasses a wide variety of ecosystems including pine-oak forests at higher elevations, cloud forests, and tropical evergreen rainforest in the lower slopes. These habitats shelter an extraordinary range of plant and animal species, some of which are endemic or threatened, such as jaguars, ocelots, and several bird species rare to the region. Designated as a biosphere reserve in 2002, the area plays a crucial role in preserving biodiversity, water resources, and indigenous cultural heritage. The region is home to several indigenous groups including the Mixe and Zapotec peoples, who maintain traditional land use practices that support sustainable coexistence with nature. Outdoor enthusiasts can explore the terrain via a network of hiking trails that traverse varied elevation zones, offering panoramic vistas and wildlife viewing opportunities. Natural landmarks include dense cloud forests, the Cañón de la Viga river gorge, and a patchwork of waterfalls and springs. Visitors seeking immersion in remote nature will find the reserve's pristine forests and quiet rivers ideal for ecotourism, birdwatching, and cultural encounters with local communities. Due to its rugged terrain and limited infrastructure, exploring the reserve requires preparation and local guidance, but rewards with unparalleled natural beauty and a deep connection to Oaxaca’s montane environments.
Cañón de la Viga – dramatic river canyon with rich biodiversity
Extensive cloud forest ecosystems hosting endemic flora and fauna
Cultural heritage sites of Mixe and Zapotec indigenous peoples
Remote trails with exceptional wildlife viewing, including jaguars and toucans
A spectacular river canyon carved through limestone, offering dramatic views and rich habitats for numerous species.
Unique montane cloud forest ecosystems that support high biodiversity, including rare orchids and bird species.
Local villages where traditional land stewardship blends with rich cultural heritage and sustainable resource use.