The Pinacate and Gran Desierto de Altar Biosphere Reserve is a protected area located in northwestern Mexico, near the U.S. border. It encompasses diverse landscapes, including volcanic craters, sand dunes, and unique desert ecosystems. The reserve is home to various plant and animal species, some of which are endemic to the region. Established in 2013, the biosphere reserve covers approximately 1.8 million acres and is recognized for its ecological significance. It is part of the larger Sonoran Desert and plays a crucial role in conservation efforts, promoting biodiversity and sustainable land use practices in the area.