Following Evelyn’s suggestions, I will post random geology pics this week. Lake Marathon in Attica, Greece is providing a significant amount of the drinking water needed for the broader Athens region, where almost 40% of the 11 million Greeks live. Built between 1926 and 1929, the dam is 54 m high and 285 m long. The reservoir has a maximum volume of 41,000,000 m³ of water. Interesting is that the entire dam and the associated maintenance buildings are cased with the famous marble from the close-by Penteli mountains. I’ve been there during a great student’s excursion in 2007.