Lake Toba, North Sumatra, Indonesia

Primary outflows	Asahan River
Basin countries	Indonesia
Location North Sumatra, Indonesia  Lake type  Volcanic/ tectonic
Max. lengt	100 km (62 mi)
Max. width	30 km (19 mi)
Surface area	1,130 km2 (440 sq mi)
Max. depth	505 m (1,657 ft)
Water volume	240 km3 (58 cu mi)
Surface elevation	905 m (2,969 ft)
Islands	Samosir