Angammedilla National Park is one of the new national parks in Sri Lanka. The region was designated national park on 6 June 2006. Originally Angammedilla was a forest reserve within the Minneriya-Girithale Sanctuary declared on 12 February 1988. The park is declared mainly to protect the drainage basin of Parakrama Samudra. Angammedilla also secures the drainage basins of Minneriya and Girithale irrigation tanks, water sources in Sudu Kanda (Sinhala for “White hill”) and habitats and wildlife of the adjacent forests.
It is located 225 kilometres (140 mi) away from Colombo in Polonnaruwa District. The vegetation of the park is predominantly dry evergreen forests. Diospyros ebenum is one of the dominant plant species in the forest.Manilkara hexandra(Palu),Cholorocylon swetenia(Burutha), Vitex pinnata(Milla),Adina cordifolia(Kolon) are comon in natural vegetation. Mesua ferrea trees are grown in communities. Sri Lankan elephant, Sri Lankan sambar deer, Indian muntjac, Sri Lankan axis deer, water buffalo, wild boar, and peafowl are common within the park. However Sri Lanka leopard, sloth bear, grizzled giant squirrel and Sri Lanka junglefowl are sometimes seen. The primate species red slender loris, tufted gray langur, and purple-faced langur are seen also.