Lake Polyfyto (Greek: Λίμνη Πολυφύτου) is one of the largest artificial lakes in Greece. It was created in 1974 by the construction of the Polyfyto Dam, which impounds the river Aliakmon, by the Public Power Corporation of Greece.[1] The maximum accumulated volume is 1,220×10^6m3 (4.3×1010cuft).[1] The surface area of the lake is 74km2 (29sqmi),[2] and the elevation of the lake surface at maximum filling is 289m (948ft).[1] The design capacity of the hydroelectric power station at the dam is 375 MW.[3]