hidden Saymensky Canal, the SAIMAA CANAL. Built in 1843-56 to connect Lake Saimaa to the Gulf of Finland. It is situated in Vyborg District of Leningrad Oblast and in Finland. Attempts to build the canal were made in 1499–1511 and in 1607-09. In 1835, a survey was carried... more

hidden Vuoksa River, the VUOKSA, river. It originates in Lake Saimaa (Finland), and flows in Vyborg and Priozersk Districts of Leningrad Oblast. Length: 156 km (of which, 143 km in Leningrad Oblast.). It is subdivided into two arms, the northern and the southern one. The... more