The Ierul Îngust 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 drainage ...

of the river

Ier The Ier or Eriu ( hu, Ér) is a right tributary of the river Barcău (''Berettyó'') in Romania and Hungary. It discharges into the Barcău in Pocsaj. The Andrid Dam is constructed on this river. The Ier flows through the villages Mihăieni, E ...

Romania Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, and Southeast Europe, Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, S ...

. It flows into the Ier near

Diosig Diosig ( hu, Bihardiószeg) is a commune in Bihor County, Crișana, Romania with a population of 6,816 people. It is composed of two villages, Diosig and Ianca (''Jankafalva''). The commune is located in the northwestern part of the county, on th ...

, close to the Hungarian border. Its length is and its basin size is .

References

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