What are the three main north-to-south landform zones of Chile?

The major landforms of Chile are organized into three parallel, north-to-south units:1

• The Andes Mountains: Located to the east, this massive mountain system forms the country's eastern border.1
• The Intermediate Depression: Also known as the longitudinal valley, this central region sits between the Andes and the coastal ranges.1
• The Coastal Ranges: Situated to the west, these mountains form a ridge between the intermediate depression and the Pacific coast.12

These three landform units extend lengthwise through the country's various latitudinal geographic regions.1