- Dividing the country into two very distinct regions: Chile west and Chile east of the Andes.
- The Andes Mountains act as a barrier for weather patterns coming from the Pacific Ocean.
- The Andes influence the climate patterns in Chile. The western slopes of the Andes receive most of the precipitation in the form of rain and snow. The eastern slopes of the Andes are much drier due to the rainshadow effect.
Economic effects
- Mining: Chile is rich in a number of minerals, such as copper, gold, silver, and lithium. The majority of these minerals are found in the Andes Mountains, making mining an important economic sector in Chile.
- Agriculture: The fertile soil and varied climate in Chile allow for a wide range of agricultural products to be grown. The Andes Mountains provide water for irrigation and protection from the cold winds coming from the south.
- Tourism: The Andes Mountains offer opportunities for hiking, skiing, and other outdoor activities. This draws in tourists from all over the world, which contributes to the economy.
Social effects
- The Andes Mountains influence the culture of the Chilean people. The indigenous people of Chile, the Mapuche, have lived in the Andes for centuries and their traditions and culture are still practiced today.
- Chile has a strong national identity and the Andes are seen as a symbol of this. The mountains are a source of pride for Chileans and are a popular tourist destination for locals.
- The Andes have influenced the country's demographics and settlement patterns. The majority of Chile's population lives near the coast and this is due to the Andes blocking the expansion of settlements eastward.