Barcău
The Barcău or Bereteu is a river which has its origin in Sălaj County, Romania. It is about long with a watershed area of. After crossing Bihor County in Romania and Hajdú-Bihar and Békés County in Hungary, it flows into the Sebes-Körös near Szeghalom. Its length in Romania is.
The upper reach of the Barcău, upstream of the junction with the Răchita is locally called the Ștei, Berchesei or Bărcașu. The reach between the junctions with the Răchita and the Toplița is locally known as the Tusa. The name Barcău is only used following its confluence with the Toplița.The following towns and villages are situated along the river Barcău, from source to mouth: in Romania Boghiș, Nușfalău, Ip, Suplacu de Barcău, Balc, Abram, Marghita, Abrămuț, Chișlaz, Sălard, Tămășeu, in Hungary Kismarja, Pocsaj, Gáborján, Berettyóújfalu, Szeghalom.Tributaries
The following rivers are tributaries to the river Barcău :
- Left: Valea Răchitelor, Toplița, Iaz, Valea Mare, Groapa, Cerăsei, Marca, Borumlaca, Săldăbagiu, Bistra, Valea Albă, Tria, Valea Fânețelor, Almaș, Valea Vițeilor, Fâneața Mare, Crișul Mic
- Right: Comăneasa, Ip, Camăr, Curătura, Dijir, Inot, Cheț, Valea Lacului, Făncica, Sânnicolau, Roșiori, Ier
