Syniukha

The Syniukha (Синюха) is a river in Ukraine, a left tributary of the Southern Bug, the basin of Black Sea. Its name means blue or of blue shade. It is 111 km long with a 16700 km2 basin area. It is formed at the confluence of its source rivers the Tikych (itself formed at the confluence of the Hnyly Tikych and the Hirskyi Tikych) and the Velyka Vys. It flows into the Southern Bug at Pervomaisk.

It is believed that in the mid-14th century one of the major battles between the Grand Duchy of Lithuania and the Ulus Jochi, the Battle of Blue Waters, took place here.