Black Lake

Black Lake is located in a high floodplain on the left bank of the Sviyagi River in the city of Ulyanovsk in the Zasviyazhsky district. This is an old type lake with an area of 6.8 hectares.

The open water mirror is 1.8 hectares, the maximum depth is 2.42 hectares. The food is surface-underground mixed type, it is connected with the river Sviyagi and the resulting ducts. In the summer, the water level is 1 meter above the Sviyagi edge. Every year, water mass is completely replaced almost 25 times.

Water is weakly alkaline, hard, hydrocarbonate-sulphate-calcium-sodium.

In 1993, an ecological park was opened on the territory of the Black Lake with 420 species of vascular plants, 20 species of fish, 7 species of amphibians, 1 species of reptiles, 11 species of mammals, 120 species of birds and 1500 species of invertebrates.