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 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.
Santa Rosa National Park, the first national park established in Costa Rica, protects some of the last remaining tropical dry forest in the world. It is part of the Area de Conservación Guanacaste World Heritage site.
The Savegre Biosphere Reserve is located on Costa Rica's central Pacific coast and borders two other biosphere reserves in the north and east. Due to its varied topography, as well as its heterogeneity of microclimates, it is one of the most biodiverse sites in the country.
In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means 'Origin of the Sky'. Located on the east coast of the Yucatán Peninsula, this Biosphere Reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef.
The Sierra de Álamos – Río Cuchujaqui Biosphere Reserve is located in the Mexican State of Sonora. From the tropical deciduous forest to the Sierra Madre evergreen forest, the reserve hosts an abundance of key species and extraordinary biological wealth.
The Sierra de las Minas mountain range, that runs through the country's southeast highlands, is one of the truly wild places in Guatemala. Protection of the area is particularly important because it contains an estimated 60 percent of Guatemala’s remaining cloud forest.
The Sierra Gorda Biosphere Reserve is located in the State of Queretaro in northern Mexico. Its strategic biogeographical position between the Arctic Neotropical and the Mesoamerican Mountain regions makes Sierra Gorda one of the most ecologically rich and diverse places in Mexico.
The Solentiname Islands are an archipelago located in the southeastern part of Lake Nicaragua. They are made up of four larger islands: Mancarroncito, Mancarrón, San Fernando and La Venada. Along with some 32 smaller islands with rocky headlands, they afford shelter to numerous aquatic birds.
The location of this unique transboundary site in Central America, where Quaternary glaciers have left their mark, has allowed the fauna and flora of North and South America to interbreed. Four different Indian tribes inhabit this area, which benefit from close cooperation between Costa Rica and Panama.
The Tehuacán-Cuicatlán Biosphere Reserve is located in rugged terrain set amid a complex system of mountain ranges and valleys within the Sierra Madre del Sur. Due to its endemic species, endangered species and its rare floristic species, the site is an IUCN world biodiversity hotspot.