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 Narova River, the NAROVA (Narva, obsolete Estonian Alukse), river. Length: 77 km. Catchment area: 56,200 sq. km. Flow rate: 399 cu. m/s. It flows out of Lake Chudskoye and it flows into the Narva Bay of the Baltic Sea. N. is a borderline between Russian Federation... more

hidden Plyussa River, the PLYUSSA, river. Flows in Pskov Oblast and in Slantsi District of Leningrad Oblast. Length: 281 (according to other data, 295) km. Catchment area: 6,500 sq. km. Flow rate: 50 cu. m/s. It flows out of Lake Zaplyusye (Zaimosskoye) and into the Narva... more