Most Lake is an artificial lake in Most in the Ústí nad Labem Region of the Czech Republic. The lake came to be as a result of land rehabilitation of an area formerly used as a lignite mine, and was named after the mine. The lake spans 309 ha (760 acres), which makes it the second largest lake in the country. It has a length of 3 km (1.9 mi) and a width of 1.5 km (0.9 mi). The water level is 199 m (653 ft) above sea level and maximum depth of the lake is 71 m (233 ft). The lake is open to the public since 12 September 2020.