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Lake Ladoga occupies the range of latitudes from about 59.893° to 61.739° North,
and the range of longitudes from about 30.008° to 32.956° East.
136 miles (219 km)
Saltwater but with a hint of freshwater
It is located in Republic of Karelia and Leningrad Oblast in north-western Russia not far from Saint Petersburg.
That is Lake Ladoga near St. Petersburg.