The Spanish border refers to the boundaries that separate Spain from its neighboring countries. The most notable border is with Portugal, which runs for about 1,214 kilometers. This border is primarily defined by natural features like rivers and mountains, making it a scenic route for travelers. Another significant border is with France, stretching approximately 623 kilometers. This border includes the Pyrenees Mountains, which serve as a natural barrier. Both borders play a crucial role in trade, tourism, and cultural exchange between Spain and its neighbors.