In the Leningrad region in the village of Lopukhinka there is an amazing lake with an unusual sky-blue color of the water the radon lake. Rather it is a huge ravine or even several water basins with a depth of tens of meters. Along its bottom runs a small river, Rodica. About the building Lopukhinsky high school slope of the ravine is a sheer cliff, folded limestone. These ancient limestone, of Paleozoic age, you can easily find the remains of fossilized fauna of marine mollusks and even ancient fossils – trilobites. From cracks, splits limestone, flow numerous streamlets of springs that flow into Rudico.
The pond is incredibly clear, at the bottom there is no plants, no plankton, no any other animals. In addition, the lake has healing properties, and next to it you can make interesting discoveries.
Radon lake are artificial in origin, formed by the construction of 2 dams in the upper reaches of Radici — the length of the upper lake is about 200 meters, 50 meters — lower lake length of 550 meters, a width of 40-60 meters.
In the early XX century on the sources feeding the lake Lopukhinsky, drew the attention of renowned hydrogeologist N. F. Cellars. He found that their heavenly color of a pond Continue reading