Lake Baikal is located in the southern part of Eastern Siberia, Russia. It is the largest and deepest freshwater lake in the world. It is located in the Republic of Buryatia and Irkutsk and is between 51°29′-55°46′N and 103°E. Between 41'-109°57', narrow and curved, northeast to southwest, only 111km away from the Mongolian border, lake length 636km, average width 48km, width 79.4km, area 31,500sq.m. Meters, with an average depth of 744 meters, the deepest point of 1637 meters, the lake surface elevation of 456 meters, the shape of a crescent, the total water storage capacity of 23.6 trillion cubic meters.