Ulloa is unable to find the Strait…

The Stanley party, after four hundred miles (six hundred and forty kilometers), reaches Boyoma Falls (called Stanley Falls for some time after) which they have to pass overland, on January 6, 1877.

Stanley uses sectional boats to pass the great cataracts separating the Congo into distinct tracts.

There are seven cataracts some miles long each.

Altogether, they span 60 miles (97 km).

It takes the Stanley expedition until February 7 to reach the end of the Falls.

Stanley has reached the Congo river, and thereby proven that the Lualala does not feed the Nile.

He is now crossing the land of the Bemberi people, leaving cannibals behind.

Also, starting here the tribes have firearms, apparently the furthest reach of western (Portuguese) influence from the sea.

He also discovers that his trade goods, valuable in eastern Africa, are worth next to nothing here.