High Quality Content by WIKIPEDIA articles! The Río Plátano Biosphere Reserve is 5,250 km² of preserved land in the La Mosquitia region on the Caribbean coast of Honduras. Most of the land runs along the Río Plátano. The reserve has a number of endangered species and some of Honduras largest sections of forest. It has been a World Heritage site and biosphere reserve since 1982. The reserve encompasses both mountainous and lowland tropical rainforest, full of diverse wildlife and plant life, and has more than 2000 inhabitants. The reserve is part of the Mesoamerican corridor land that stretches across America.