Slovak-Moravian Carpathians
The Slovak-Moravian Carpathians (CZ/SK: Slovensko-moravské Karpaty) are the mountain ranges along the border of the Czech Republic and Slovakia. Before the Treaty of Trianon in 1920, it was known in Hungarian as Magyar-morva határhegység 'the Hungarian-Moravian border mountains'.
Source: Wikipedia — Slovak-Moravian Carpathians (CC BY-SA 4.0)