A series of massive mountain ranges includes the Alps, which separate France and Italy, and the Jura Mountains that delineate the Franco-Swiss border.

• 连绵起伏的山脉包括阿尔卑斯山脉横亘于法国和意大利之间，形成了一道天然国界；而侏罗山脉则延绵构成了法国和瑞士难以逾越的国界。