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Lake Albano (Italian: ''Lago Albano'' or ''Lago di Castel Gandolfo'') is a small volcanic crater lake in the Alban Hills of Lazio, at the foot of Monte Cavo, southeast of Rome. Castel Gandolfo, overlooking the lake, is the site of the Papal Palace of Castel Gandolfo. In Roman times it was known as Albanus Lacus and lay not far from the ancient city of Alba Longa. With a depth of about , Lake Albano is the deepest in Lazio. The lake is long by wide, and was formed by the overlapping union of two volcanic craters, an origin indicated by the ridge in its center, which rises to a height of . Plutarch reports that in 406BC the lake surged over the surrounding hills, despite there being no rain nor tributaries flowing into the lake to account for the rise in water level.〔 *〕 The ensuing flood destroyed fields and vineyards before eventually pouring into the sea. It is thought to have been caused by volcanic gases, trapped in sediment at the bottom of the lake and gradually building up until suddenly releasing, causing the water to overflow. Around 395BC, during the wars between Rome and Veii, a discharge tunnel was built crossing the crater walls. It served as an emissary whenever the water level overflowed its mouth. According to Titus Livius, this feat of engineering was incited by the Oracle of Delphi: the Roman victory against Veii would be possible only when the lake waters were channeled and used for irrigation.〔Titus Livius, ''Ab Urbe Condita'', V, 15-16.〕 The emissary is at 293 meters over the sea level. The tunnel (1200 m long, 1,20 m wide and 2 m high) ends at a spot called Le Mole, below Castel Gandolfo. It hosted the canoeing and rowing events of the 1960 Summer Olympic Games that were held in Rome. The lane marking system developed for these events is commonly referred to as the Albano buoy system. ==Image gallery== Image:Schedrin Albano.jpg|Painting by Sylvester Shchedrin, before 1825 Image:George Inness 001.jpg|Lake Albano, George Inness, 1869 Image:Lago albano castelgandolfo roma italy.JPG|Panoramic view Castel Gandolfo.jpg|View of the lake showing Castel Gandolfo 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lake Albano」の詳細全文を読む スポンサード リンク
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