The Niassa Reserve is known as one of the largest protected Miombo forest ecosystems in the world with a surface area of 42, 000 km2. The reserve is the largest conservation area of Mozambique and it contains by far the greatest concentration of wildlife in the country. It is located in northern Mozambique, covering parts of Cabo Delgado Province and nearly one third of Niassa Province. The Niassa Reserve core area of 22 000 km2 is bordered by the Rovuma River in the north (Tanzania border), Lugenda River in southeast, Luatize River southwest and Lussanhando River in the west. A buffer area of 20 000 km2, which was divided in six management concessions, is also part of the Niassa Reserve. The total area is twice the size of Kruger National Park in South Africa.