The only tributary of the river is Fish Creek.

The only tributary of the river is Island Brook.

The only major tributary is the Etheridge River which joins the two main stems at a point very close to their convergence.

Here it is joined by the only tributary of any size, the Aue.

The only tributary to the Sale is the Berckelman River.

Although numerous smaller streams join the river, the Clun is its only large tributary.

The only tributary with a run of anadromous fish, is the Grøvu.

The only tributary that flows into the lake, is a stream with the same name, Ovan, coming down from northern mounts.

The Sandspruit is its only significant tributary in the lowveld.

The Caucagua is its only major tributary from the south.