Mine 145

Underwater Exploration

In the 5th century BC, some 11,000 people work in the metallurgical area of Lavreotiki to produce 20,000 kilograms of silver per year. In 1864 the French Company (founded by Serpieris and Greek shareholders) is established and in 1867 it receives the first license to work at the ancient slags of the area from the Greek State. In 1873 the French Company is divided into two, the “Lavrion Hellenic Mining Company” (1873 – 1917) and the “Kamariza Mining Company” (1873 – 1875). In 1875 the “Lavrion French Mining Company” is established (1875 – 1981) which is essentially responsible for the revival of Lavrio out of the extensive mining activity and the founding of the Plaka and Kamariza settlements in 1880.

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The team walked through solid rock and a moody terrain until reaching the flooded parts of this mine. This was the most difficult part as the divers assisted by team members who walked waist deep in water for approximately 120 meters carrying the necessary diving equipment.

The divers then swam for approximately 30 to 40 meters until fully submerging. Starting the dive a cave line was secured and the divers proceeded approximately 70 meters until reaching the end of the chamber. A cave line and arrow has been secured and left in place.

Twice the team have visited and dived mine 145. The first was on the 7th of September 2019 whilst the second was on the 9th of May 2020. It was the first time divers have explored the flooded parts of this mine.

The clarity and visibility of the water in the mine was average in the beginning and got better as the dive progressed further. The temperature of the water is 15 Celsius. Percolation from the exhalation of bubbles and fin movement during exit was as expected moderate.

The Teams:

Addicted2h2o: https://addicted2h2o.com

GreekGate: https://www.facebook.com/PyleEllenikonArchaiologikonIstorikonSpoudon/

Sources:
-Lavrio Historical-Technological Cultural Park (www.Itp.ntua.gr/home_en)
-The Archaeological Guide of Thorikos (Ministry of Culture)
-Athanasia Markoulis-Boudiotis, “Lavrion French Mining Company (LFMC): Its evolution and contribution to the development of the Greek economy during the 19th and 20th centuries”, Lavreotiki Development Association 2010.