The Cumpăna 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 Argeș 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 discharges into

Lake Vidraru Lake Vidraru () is an artificial lake in Romania. It was created in 1965 by the construction of the Vidraru Dam on the Argeș River. It lies in the shadow of the Făgăraș Mountains. . Vidraru Lake is a reservoir lake created in 1965 on the Ar ...

, which is drained by the Argeș. Its length is and its basin size is .

References

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