The Șucu (in its upper course also: ''Șuculețu'') is a left

tributary A tributary, or affluent, is a stream or river that flows into a larger stream or 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 drain the surrounding drai ...

of the river

Bistra Mărului The Bistra Mărului is a left tributary of the river Bistra in Romania Romania ( ; ro, România ) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It borders Bulgaria to the south, Ukraine to the nor ...

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

. It flows into the Bistra Mărului in Poiana Mărului.Sucu (jud. Caras Severin)
e-calauza.ro Its length is and its basin size is .

References

Rivers of Romania Rivers of Caraș-Severin County {{CarașSeverin-river-stub