Moravian Gate
Geologically all of the Beskids stand within the Outer Western Carpathians and the Outer Eastern Carpathians. In the west they begin at the natural pass of the Moravian Gate, which separates them from the Eastern Sudetes, continue east in a band to the north of the Tatra Mountains, and end in Ukraine. The eastern termination of the Beskids is disputed. According to older sources, the Beskids end at the source of the Tisza River, while newer sources state that the Beskids end at the Uzhok Pass at the Polish-Ukrainian border.