The Olanul is a right

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

Cerna In molecular biology, competing endogenous RNAs (abbreviated ''ceRNAs'') regulate other RNA transcripts by competing for shared microRNAs (miRNAs). Models for ceRNA regulation describe how changes in the expression of one or multiple miRNA targets ...

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 discharges into the Cerna near Cerna-Sat.Olanul (jud. Gorj)
e-calauza.ro Its source is in the Godeanu Mountains. Its length is and its basin size is .

References

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