does western cordillera have plateaus
-Interior Plateaus. The Interior Plateaus were made by volcanic activity and are made of igneous and sedimentary rock. They contain very valuable metals like zinc, copper, and even gold. Also, the Interior Plateaus are in the center/middle of the Western Cordillera.-Coast Mountains. The Coast Mountains were created from the Pacific Plate going underneath the North American Plate, and the pressure from this happening caused magma to rise into the Earth's crust.he Western Cordillera was created by the North American and Pacific Plates colliding, which caused folding, faulting, and volcanic activity. The Western Cordillera has three sections.