Train carrying mined salt Atanasovsko lake. Gauge is 600 mm.
Due to the water of Lake Atanasovsko's high salt content that increases every year because of the link with the sea, salt has been produced in it since 1906, with 40,000 tons of sea salt being obtained a year. The lake's north part, a nature reserve since 1980, is connected by a canal to the Black Sea, while the smaller south one that is mostly used for salt production is a buffer zone to the reserve.
