1911 Encyclopædia Britannica (1911)
“ The south-eastern part of Lake Ladoga falls also within the government of Olonets. The rivers drain to the Baltic and White Sea basins. To the former system belong Lakes Ladoga and Onega, which are connected by the Svir and receive numerous streams; of these the Vytegra, which communicates with the Mariinsk canal-system, and the Oyat, an affluent of Lake Ladoga, are important for navigation. Large quantities of timber, fire-wood, stone, metal and flour are annually shipped on waters belonging to this government. ”
