Ladoga, Indiana Ladoga, Indiana Ladoga is a town in Clark Township, Montgomery County, in the U.S. state of Indiana. The population was 985 at the 2010 census. Ladoga was platted in 1836 by John Myers. Myers invited his friends to help him find a name. He required that the name not end in -burg or -ville and that it would not be named after another town. He chose Ladoga after finding Lake Ladoga on a map of Russia. In 1837, the town's post office was established, which still operates today. In 1840 there were fifteen buildings in Ladoga, including two large stores
Lake Ladoga due to uplift of the Baltic Shield in the north. It has been hypothesized, but not proven, that waters of the Litorina Sea, the next brackish-water stage of the Baltic, occasionally invaded Ladoga between 7,000 and 5,000 BP. Around 5,000 BP the waters of the Saimaa Lake penetrated Salpausselkä and formed a new outlet, River Vuoksi, entering Lake Ladoga in the northwestern corner and raising its level by 1–2 m. The River Neva originated when the Ladoga waters at last broke through the threshold at Porogi into the lower portions of Izhora River, then a tributary of the Gulf of