There is historical evidence to that this area had been inhabited by man during the ancient Sinhala kingdoms in BC. Giant canal of kalinga (Kalinga Yodha Ela) built in the reign by king Parakramabahu in the 12th century while the remains of Malagamuwa, Wilmitiya, Wasgamuwa and Dasthota tanks bear witness to the past prosperity of the area. Kalinga island (Kalinga Duwa) too is an interesting place to visit. Kadurupitiya, Dagoda, Baduruwayaya Buddha Statue, Malagamuwa stone pillars and other ruins also bear witness to the past glory of the area.

Yudanganapitiya where the armies camped during the battle of kings Durugemunu and Elara is yet another place of historical importance within the Wasgamuwa National park.

Twenty three (23) species of mammals in Sri Lanka have been reported from this park. The most important of them is the wild elephant the population of which is approximately 150. in addition, one could see the wild buffaloes grazing in the grassland while spotted Deer roaming in the open areas. Occasions where one comes across a Leopard or a sloth bear are nor rare. There are also water Monitors and crocodiles roaming very often in the water holes within the park. Of the 428 species of birds reported to be found in Sri Lanka, 143 species are found in this park.