The Topolnița 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

Danube The Danube ( ; see also #Names and etymology, other names) is the List of rivers of Europe#Longest rivers, second-longest river in Europe, after the Volga in Russia. It flows through Central and Southeastern Europe, from the Black Forest sou ...

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 ...

. In the central Mehedinți Plateau it descends into Topolnița Cave, eventually emerging at the foot of a hill downstream. It discharges into the Danube in

Drobeta-Turnu Severin Drobeta-Turnu Severin (), colloquially Severin, is a city in Mehedinți County, Oltenia, Romania, on the northern bank of the Danube, close to the Iron Gates. It is one of six Romanian county seats List of cities and towns on the river Danube, lyin ...

.Topolnita (jud. Mehedinti)
e-calauza.ro Its length is and its basin size is .

References

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