The Agăș () is a left

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

of the river Trotuș in

Romania Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...

. It flows into the Trotuș in the village Agăș.Agas (jud. Bacau)
e-calauza.ro Its length is and its basin size is . The Agăș is the source of the water supply system of the village of Agăș.

References

Rivers of Romania Rivers of Bacău County {{Bacău-river-stub