A "Cordillera" is a system of mountain ranges that are interconnected and often form a continuous chain. These mountain ranges can span large areas and are typically characterized by their rugged terrain and diverse ecosystems. The term is commonly used in regions like the Andes in South America and the Rocky Mountains in North America. Cordilleras can influence local climates and weather patterns, as they act as barriers to wind and precipitation. They are also important for biodiversity, providing habitats for various plant and animal species. Additionally, many cordilleras are significant for human activities, including agriculture, mining, and tourism.