This stream was one of the upper tributaries of the Gaboon.
After walking for two hours the character of the forest changed.

The high trees were farther apart, and a thick undergrowth began to make its appearance, frequently causing him to make long detours and preventing his following the line he had marked out for himself.

This caused him much uneasiness, for he knew that he had passed across no such country on his way from the camp, and the thought that he might experience great difficulties in recovering it, now began to press upon him..