It is theorized that while drainage to the Arctic Ocean basin (e.g. by the Ob and Yenisei Rivers) was prevented, the lake would eventually overflow to the Mediterranean Sea through a circuitous route that would include the Aral Sea, the Caspian Sea, and the Black Sea. This would have resulted in water from the Selenga River and Lake Baikal draining over a course of some 6,000 miles (9600 km), considerably longer than any river's course today.
^Dutch, Steve, Professor of Natural and Applied Sciences, University of Wisconsin-Green Bay. "Pleistocene Glaciers and Geography" webpage (accessed 30 November 2006)
^Mangerud, J. et al. (2004). Ice-dammed lakes and rerouting of the drainage of northern Eurasia during the Last Glaciation. Quaternary Science Reviews 23 (2004), pp. 1313–1332.  (accessed 30 November 2006)