
Ancient Reservoirs of Ethimale, Kotiyagala and Panama
Wila Oya that commences its journey from the Helabada-Bowitiya mountain range in Moneragala joins the eastern sea at Panama in Ampara District. Wila Oya catchment gets its importance because its development history dates back to Dutugemunu era. Major irrigations schemes that are currently in operation in the Wila Oya catchment are Ethimale Wewa, Kotiyagala Wewa and Panama Wewa reservoirs.