Lake Onega Reservoir has an area of and volume of , i.e. almost the same as those of Onega Lake. Its construction raised the water level of the lake by . The lake contains a well-developed navigation system which is part of the Volga–Baltic Waterway and White Sea – Baltic Canal, connecting the basins of Baltic, Caspian and the northern seas. These canals allow water transport of goods from the lake to the countries from Germany to Iran; most traffic goes to Finland, Sweden, Germany and Denmark. The Onega Canal running along the southern shore of the lake there is not used
Arkhangelsk Gospel in satisfactory condition - the ink and vermilion has crumbled in places, but the parchment does not have signs of contamination or moisture. The Archangel Gospel was reproduced in 1912 as a facsimile and in 1997 as a scientific publication. The early history of the manuscript and place of its provenance are unknown before 1876. There are some suggestions that it came from the scriptorium of the Lazarevsky monastery near Great Novgorod, but there is no unambiguous evidence to support the hypothesis. In early December 1876 the manuscript was brought to Moscow by a peasant from Arkhangelsk region and was