We are on the watershed, apparently between the Loangwa of Zumbo on the west, and the Lake on the east.

The Leue or Leuia is said by the people to flow into the Loangwa.

The Chigumokire coming from the north in front, eastward of Irongwe (the same mountains on which Kangene skulks out of sight of Mazitu), flows into the Leue, and north of that we have the Mando, a little stream, flowing into the Bua.

The rivulets on the west flow in deep defiles, and the elevation on which we travel makes it certain that no water can come from the lower lands on the west.

It seems that the Portuguese in travelling to Casembe did not inquire of the people where the streams they crossed went, for they are often wrongly put, and indicate the direction only in which they appeared to be flowing at their crossing places.