Descripción: UNESCO, MAB Biosphere Reserves Directory.
«El Vizcaino is located in the central part of the Baja California peninsula in the Sebastian Volcano region, between the Gulf of California and the Pacific Ocean. Vizcaino includes a great abundance and variety of species of wild fauna and flora, including numerous endemics to the Mesoamerican region and species which are in danger of extinction elsewhere. Protection of the site is justified by the exceptional value of the desert, mountain and coastal/marine ecosystems, which link the Pacific Ocean to the Gulf of California. The reserve is also of importance for its fossil beds and numerous marine birds, including some under threat of extinction. Grey whale (Eschrichtius robustus) frequents the bay.»