Pinios Lake, reservoir in Greece

Pinios Lake is an artificial reservoir in Elis, formed by a dam on the Pinios River. It covers 19.895 km², making it the largest lake in the Peloponnese. The dam, begun in September 1961 and delivered in 1968, submerged the village of Xeniés and the settlements of Paleochóra, Agía Ánna and Soúli. The water is backed by Mount Erymanthos and Mount Skollis.

Construction of the dam on the Pinios River began in September 1961 and the work was delivered in 1968. Filling the reservoir submerged the village of Xeniés, which lay on the lake bed, and the settlements of Paleochóra, Agía Ánna and Soúli were abandoned. The lake covers 19.895 km², the largest in the Peloponnese, and holds 366 million cubic metres of water.

The reservoir is named after the Pinios River, dammed here in Elis. When the water rose, the village of Xeniés, at the bottom of the future lake, was abandoned along with Paleochóra, Agía Ánna and Soúli. The lake is the largest in the Peloponnese, covering 19.895 km².

The lake lies in the Elis regional unit of Western Greece, reached by road from Amaliada and nearby villages; the dam stands at its northern end. The water level varies with the reservoir's operation, so the shoreline shifts through the year. The abandoned village of Xeniés lies submerged beneath the surface.

Four settlements were submerged when the reservoir filled: Xeniés, which lay on the lake bed, plus Paleochóra, Agía Ánna and Soúli. The dam on the Pinios was begun in September 1961 and handed over in 1968, impounding 366 million cubic metres of water over 19.895 km², the largest lake in the Peloponnese.