Its source is in the Slovak Ore Mountains. The river crosses the border with Hungary near Turňa nad Bodvou, and it flows into the river Sajó in Boldva, north of Miskolc.
The source of the river lies within the Slovak Ore Mountains. It traverses the border between Slovakia and Hungary near Turňa nad Bodvou before flowing into the river Sajó at Boldva, located north of Miskolc.