The Derna is a right
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 drainag ...
of the river
Valea Fânețelor 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 north, Hungary to the west, Serbia to the southwest, Moldova to the east, a ...
. It flows into the Valea Fânețelor in
Sărsig.
Derna (jud. Bihor)
e-calauza.ro Its length is .
References
Rivers of Romania
Rivers of Bihor County
{{Bihor-river-stub