The Leuser Ecosystem is an area of forest located in the provinces of Aceh and North Sumatra on the island of Sumatra in Indonesia. Covering more than 2.6 million hectares it is one of the richest expanses of tropical rain forest in Southeast Asia and is the last place on earth where sumatran elephant, sumatran rhinoceros, sumatran tiger and sumatran orangutan are found within one area.
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