The Trotuș () is a river in eastern Romania, a right tributary of the river Siret. It emerges from the Ciuc Mountains in the Eastern Carpathians and joins the Siret in Domnești-Sat near Adjud after passing through Comănești and Onești in Bacău County. The total length of the Trotuș from its source to its confluence with the Siret is . Its basin area is . Towns and villages The following towns and villages are situated along the river Trotuș, from source to mouth: Lunca de Sus, Lunca de Jos, Ghimeș-Făget, Palanca, Agăș, Comănești, Dărmănești, Târgu Ocna, Onești, Adjud. Tributaries The following rivers are tributaries to the river Trotuș (from source to mouth): Left: Gârbea, Valea Întunecoasă, Antaloc, Valea Rece, Bolovăniș, Tărhăuș, Șanț, Cuchiniș, Brusturoasa, Caminca, Șugura, Dracău, Agăș, Seaca, Ciungi, Asău, Urmeniș, Plopul, Larga, Cucuieți, Vâlcele, Gălian, Caraclău, Tazlău, Pârâul Mare Right: Comiat, Bothavaș, Ugra, Boroș, Valea Capelei, Aldămaș, Popoiul, Ciugheș, Cotumba, Grohotiș, Sulța, Ciobănuș, Șopan, Uz, Dofteana, Slănic, Nicorești, Oituz, Cașin, Găureana, Gutinaș, Bogdana, Gârbovana, Căiuți, Popeni, Bâlca, Domoșița References External links Rivers of Romania Rivers of Harghita County Rivers of Bacău County Rivers of Vrancea County