Belawan for Gunung Leuser National Park,
Gunung Leuser National Park covers more than 3,000 square miles in northern Sumatra, Indonesia, straddling the border of North Sumatra and Aceh provinces. It is named after Mount Leuser (10,230 feet), and includes a wide range of ecosystems. Most of the park is mountainous. It was declared an UNESCO World Heritage site “Tropical Rainforest Heritage of Sumatra”, because of its unique biodiversity, with more than 120 species of mammals, 190 species of reptiles and amphibians, 350 species of birds and 4000 plant species. There are some of the world’s rarest mammals living here, including the Sumatran elephant, Sumatran tiger, Sumatran rhinoceros, sambar deer and leopard cat. On the eastern side of Gunung Leuser National Park, at Bukit Lawang, is an orangutan sanctuary and rehabilitation centre that was set up by a Swiss organization in 1973. The orangutans have been released back into the jungle, but are still monitored by rangers.