The Debren 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 Olt 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 Olt in the city

Sfântu Gheorghe Sfântu Gheorghe (; or ''Szentgyörgy'' ; ; English lit.: ''Saint George'') is a city that serves as the seat of Covasna County in Transylvania, Romania. Located in the central part of the country, it lies on the Olt River in a valley between ...

. Its length is and its basin size is .

References

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