El Pinacate and Gran Desierto de Altar Biosphere Reserve


World Heritage Identification Number: 1410

World Heritage since: 2013

Category: Natural Heritage

Transboundary Heritage: No

Endangered Heritage: No

Country: 🇲🇽 Mexico

Continent: Americas

UNESCO World Region: Latin America and the Caribbean

Map

El Pinacate and Gran Desierto de Altar Biosphere Reserve: A Landscape of Dramatic Contrasts and Scientific Interest

The El Pinacate and Gran Desierto de Altar Biosphere Reserve, inscribed as a UNESCO World Heritage Site in 2013, spans over 714,566 hectares in the Mexican states of Sonora and the Tohono O'odham Nation. This vast reserve presents a unique and visually striking landscape characterized by dramatic contrasts, making it a site of great scientific interest.

More to come…

UNESCO Description of the World Heritage Site

The 714,566 hectare site comprises two distinct parts: the dormant volcanic Pinacate Shield of black and red lava flows and desert pavements to the east, and, in the west, the Gran Altar Desert with its ever changing and varied sand dunes that can reach a height of 200 metres. This landscape of dramatic contrast notably features linear, star and dome dunes as well as several arid granite massifs, some as high as 650 metres. The dunes emerge like islands from the sea of sand and harbour distinct and highly diverse plant and wildlife communities, including endemic freshwater fish species and the endemic Sonoran Pronghorn, which is only to be found in northwestern Sonora and in southwestern Arizona (USA). Ten enormous, deep and almost perfectly circular craters, believed to have been formed by a combination of eruptions and collapses, also contribute to the dramatic beauty of the site whose exceptional combination of features are of great scientific interest. The site is also a UNESCO Biosphere Reserve.

Encyclopedia Record: El Pinacate y Gran Desierto de Altar Biosphere Reserve

El Pinacate and Gran Desierto de Altar Biosphere Reserve is a biosphere reserve and UNESCO World Heritage Site managed by the federal government of Mexico, specifically by Secretariat of the Environment and Natural Resources, in collaboration with the state governments of Sonora and the Tohono O'odham.

Read more on Wikipedia

Additional Site Details

Area: 714,566 hectares

UNESCO Criteria: (vii) — Contains superlative natural phenomena or beauty
(viii) — Outstanding example representing major earth stages
(x) — Contains most important habitats for biodiversity

Coordinates: 32 , -113.9166666667

Image

Image of El Pinacate and Gran Desierto de Altar Biosphere Reserve

Richard Waitt, U.S. Geological Survey, Public domain

About World Heritage Explorer

World Heritage Explorer is an independent educational project designed to uncover and share the richness of our world’s cultural and natural heritage. Dive into detailed site profiles, immersive imagery, interactive maps, and tools that help you explore UNESCO World Heritage Sites across the globe. Drawing extensively on open data sources, the project delivers authoritative, well-structured information for learners, educators, travelers, and younger explorers alike.

Learn more

Nearby World Heritage Sites

Whale Sanctuary of El Vizcaino
469 km — Mexico
Grand Canyon National Park
486 km — United States of America
Rock Paintings of the Sierra de San Francisco
494 km — Mexico
Islands and Protected Areas of the Gulf of California
504 km — Mexico
Archaeological Zone of Paquimé, Casas Grandes
596 km — Mexico

Country Information: Mexico

Flag of Mexico

Official Name: United Mexican States

Capital: Mexico City

Continent: Americas

Population (2024): 130,861,007

Population (2023): 129,739,759

Population (2022): 128,613,117

Land Area: 1,943,950 sq km

Currency: Mexican peso (MXN)

Country Data Sources

Last updated: January 18, 2026

Portions of the page El Pinacate and Gran Desierto de Altar Biosphere Reserve are based on data from UNESCO — World Heritage List Dataset and on text from the Wikipedia article El Pinacate y Gran Desierto de Altar Biosphere Reserve, licensed under CC BY-SA 4.0. Changes made. Additional original content by World Heritage Explorer (WHE), licensed under CC BY-SA 4.0. WHE is not affiliated with UNESCO or the World Heritage Committee. Legal Notice. Privacy Policy.

Open Data for an Open World