[1] The river starts in the Carpathian Mountains and flows roughly SW to NE.

It leaves the Bukovina Obchinas (a mountain range in Outer Eastern Carpathians stretching to Ukraine and Romania) to the river's right, and the historic subregion of Pokuttia to the river's left side.

It flows along the borderline of the historic regions of Bukovina and Galicia.

[1] In the Middle Ages and the early modern era, it was part of the borderline between the Principality of Moldavia and Kingdom of Poland.

During the first half of the 20th century, it also acted as the border between Romania and Poland.