The deepest lakes in Poland

The deepest lakes in Poland are ribbon lakes, i.e. those that were formed as a result of the action of water flowing under the ice sheet. There are many such lakes, especially in the area of ​​northern Poland, where the glacier activity was intense and recent. The second type of deep lakes are diamond lakes. They are formed by melting a glacier in a cauldron – they are found in the mountains. Other types of lakes in Poland (karst, moraine, coastal lakes are not deep. There is not a single tectonic lake here, so the deepest one is only a little over 100 meters).

In 30 years, the deepest lakes in Poland will gain more – Lake Bełchatów will be certain. It is an artificial lake created by flooding a brown coal mine. The mine authorities have decided to reclaim the mine, which is slowly ending mining. The shaping of the banks and the bottom of the reservoir has already started. The filling planned for 2050 will start soon. The planned depth is 170 meters and the area is 4,000 hectares.