Gazetted year and date : 1954-02-12

Gazette number : 10640

Extent : 25900 Ha

Boundaries to this park, which is situated within Ampara District to the east and Monaraga district to the Uva are Mullegama, Dabagolla and Danigala from north; Nagolla, Komanna, kehelkumbura and Alupotha from south Nilagala from west and Inginiyagala, Namaloya, Galapitagama and Kosssapola from East.

The main objective of this park is to protect the watershed of Senanayaka Samudra reservoir. In adition the biodiversity within this area is another reason for that. Much of the rain fall is from North-East monsoon and median annual rain fall is about 1700 mm. The main vegetation type is dry mixed evergreen forest and western boundary is about 3000 acres of thick Savanna ecosystem within Nilgala area. Some of the floral species in this ecosystem are Aralu, Bulu, Nelli, Gammalu, Ebony, Milla, Mora, Ataba, Halmilla, Burutha, Kon, Godakaduru, Maila, Palu, Galsiyabala, Madan and Madu. 35 Mamalian species, 100 birds species, 33 fish species (within water bodies comprising Senanayaka Samudraya) and large number of reptiles, amphibians and butterflies can be found. . Information regarding a Buddhist sacred place with an archeological value is found in the vicinity of “Yoda Ala” situated close to Vadinagala. “Rathugala” close to western boundary there is a traditional colony of Vaddas descendants from Rathugala Vaddas still living in this area.