Angamuwa Wewa Reservoir (අංගමුව වැව)
Ancient Angamuwa Wewa was created by damming the Lunu Oya, a tributary of the Kala Oya. Its embankment rises about 10 meters and stretches roughly 1.8 kilometers. The reservoir has a capacity of 13.5 million cubic meters, with surplus water returning to the Lunu Oya via the spill. Around 2,000 acres (809 ha) of paddy fields are nourished by its waters.
