It is an upper tributary of the Dart River.

Owing to the great size of the drainage basin, it seldom happens that the three upper tributaries are simultaneously flooded.

It has three important upper tributaries.

Los Baños hot springs are located on one of its upper tributaries.

This short river is an upper tributary of the Buller River.

A small stream, an upper tributary of the Pocantico River, flows through the property.

Its two upper main tributaries are the Uraricoera and the Takutu.

Many of the upper tributaries are spring-fed and perennial.

Another Native American group, the Luiseño lived in the upper tributaries.

The main stem above Seven Oaks Dam is free flowing, as are many of its upper tributaries.