The Islas del Golfo de California Biosphere Reserve, with its over 240 islands, is located in northwestern Mexico between the rocky and arid peninsula of Baja California, the vast Sonoran Desert and the abundant mangroves of Sinaloa.
The Mapimí Biosphere Reserve is located in northern Mexico between the Neotropical and neartic biogeographical region, in the Bolson de Mapimí. It contains three core areas: Sierra de la Campana, Laguna de las Palomas (a salted lagoon) and a desert habitat called Dunas de la Soledad.
The Maya Biosphere Reserve in the Petén region of northern Guatemala, together with the Maya Forest of Belize and Mexico, represents one of the largest areas of tropical forest north of the Amazon and the northernmost tropical forest in the Western Hemisphere.
The Monarch Butterfly Biosphere Reserve protects key overwintering sites for the monarch butterfly. The millions of monarch butterflies that return to the property every year bend tree branches by their weight, fill the sky when they take flight and make a sound like light rain with the beating of their wings.
Ometepe Island is located in southwest Nicaragua, formed by two volcanoes rising out of Lake Nicargua. It is the lake's largest island. The two imposing volcanoes, Maderas and Concepcion, define its topography. The island was designated a Biosphere Reserve in 2010.
Located in the northwest of the Mexican state of Tabasco, the Pantanos de Centla Biosphere Reserve is one of the most important wetlands in what used to be Mesoamerica due to its abundance of aquatic plants and the amount of fresh water it receives from the Grijalva and Usumacinta rivers.
The Ría Celestún Biosphere Reserve is located in the northwest part of the Yucatán Península, in a coastal strip that includes the limits of the Campeche and Yucatán States. It encompasses coastal areas of the Gulf of Mexico and includes important Ramsar-designated wetlands.
The Ría Lagartos Biosphere Reserve features a variety of mangroves, small estuaries, coastal lagoons, marshes and savannah. Located at the eastern end of the Yucatán Peninsula, it is home to a variety of species, a substantial number of which are rare, vulnerable and endangered.
Located on the watershed of the Río Plátano, the reserve is one of the few remnants of tropical rain forest in Central America. With an abundant, varied plant and wildlife within its mountainous landscape, over 2,000 indigenous people have preserved their traditional way of life.
The Río San Juan Biosphere Reserve is composed of seven protected areas. It covers an important variety of ecosystems representative of tropical humid forests and wetlands, tidal marsh, coastal lagoons and estuaries which are important shelters for rare or threatened animals and plants.
The San Marcos de Colón Biosphere Reserve is situated close to the border with Nicaragua, in the Honduran department of Choluteca, at an altitude varying between 1,600 and 5,600 ft. It exhibits a rich biological diversity that include several species of endemic fauna.