hidden Drainage network HYDROGRAPHIC NETWORK. Over 19500 rivers and 1800 lakes (Ladoga and Onega being the largest ones) form the H. N. of the Leningrad Oblast. The river network is dense and ramified. One exception is the Izhora Hills where the river network density is... more

hidden Trade route from the Varangians to the Greeks The trade route from "the Varangians to the Greeks". During the 9th-11th centuries it connected Rus and the Northern Europe with Byzantine Empire on the route: the Baltic Sea - the Neva River - Ladoga Lake - the Volkhov River - Ilmen Lake - the... more

hidden White Sea-Baltic Sea Waterway, the WHITE SEA-BALTIC SEA WATERWAY, a canal system connecting the White Sea and the Baltic Sea. It includes the White Sea-Baltic Canal, Lake Onega, Svir River, Ladoga Canals, and Neva River. It has access to the Volga-Baltic Waterway via Lake Onega. The... more