Explanation

The Congo River formerly also known as the Zaire River

The name Congo originates from the Kingdom of Kongo 

is the second-longest river in Africa,

the third largest river in the world

 the world's deepest recorded river

 measured depths of around 219.5 m (720 ft)

Length: 4,700 km (2,900 mi)

The Congo basin covers ten countries 

The highest point in the Congo basin is in the Ruwenzori Mountains

while 

Lake Baikal is the deepest (1,700 m) lake in the world.

 ND13-5-2023