The OAS suspended Honduras because it did not regard its government as legitimate. Countries around the world, the OAS, and the United Nations formally and unanimously condemned the action as a coup d'état, refusing to recognize the "de facto" government, even though the lawyers consulted by the Library of Congress submitted to the United States Congress an opinion that declared the coup legal. The Honduran Supreme Court also ruled that the proceedings had been legal. The government that followed the "de facto government" established a truth and reconciliation commission, "Comisión de la Verdad y Reconciliación", which after more than a year of research and debate concluded that the ousting had been a coup d'état, and illegal in the commission's opinion. The north coast of Honduras borders the Caribbean Sea and the Pacific Ocean lies south through the Gulf of Fonseca. Honduras consists mainly of mountains, with narrow plains along the coasts. A large undeveloped lowland jungle, "La Mosquitia" lies in the northeast, and the heavily populated lowland Sula valley in the northwest. In La Mosquitia lies the UNESCO world-heritage site Río Plátano Biosphere Reserve, with the Coco River which divides Honduras from Nicaragua. The Islas de la Bahía and the Swan Islands are off the north coast. Misteriosa Bank and Rosario Bank, north of the Swan Islands, fall within the Exclusive Economic Zone (EEZ) of Honduras. Natural resources include timber, gold, silver, copper, lead, zinc, iron ore, antimony, coal, fish, shrimp, and hydropower. The climate varies from tropical in the lowlands to temperate in the mountains. The central and southern regions are relatively hotter and less humid than the northern coast. The region is considered a biodiversity hotspot because of the many plant and animal species found there. Like other countries in the region, it contains vast biological resources. Honduras hosts more than 6,000 species of vascular plants, of which 630 (described so far) are orchids; around 250 reptiles and amphibians, more than 700 bird species, and 110 mammalian species, of which half are bats. In the northeastern region of La Mosquitia lies the Río Plátano Biosphere Reserve, a lowland rainforest which is home to a great diversity of life. The reserve was added to the UNESCO World Heritage Sites List in 1982. Honduras has rain forests, cloud forests (which can rise up to nearly above sea level), mangroves, savannas and mountain ranges with pine and oak trees, and the Mesoamerican Barrier Reef System.