Kolochava and lake Synevyr (internal Gorgany)
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The Lake Saimaa

 

The largest lake (or a lake system Saimaa) is located in South-Eastern Finland between the cities of Joensuu and Lappeenranta. It is a network of many interconnected ponds with a total water surface area of 4400 km². The shoreline of the pond stretches for 15 thousand kilometers. Winding rocky Islands, which form a whole 13710 lake Saimaa water and rocky mazes. The only river flowing out of the reservoir – Vuoksi, flows on the territory of Russia and flows into lake Ladoga.

Formed the lake basin water system of Saimaa as a result of active tectonic processes that formed Archean ancient Russian platform and the Baltic shield. Tectonic faults in the earth’s crust in geological time, powerful cover have been smoothed by glaciation. When the glacier retreated, the fault was quickly filled with melt water and became the bays of the ancient Yoldia sea Baltic sea, it happened about ten thousand years ago.

Isolation basin waters from lake Saimaa to the Baltic sea happened gradually, about eight thousand years ago. Water in the lakes Saimaa via river valley of Kalajoki flowed into the Gulf of Bothnia. As a result of catastrophic release of water from lake päijänne through the valley of the Kemijoki river breakout through Continue reading