The Americas contains dramatic landscapes ranging from tundra, rainforests, deserts, mountains, and plains. The Andes and Rockies are the biggest mountain ranges and because they are aligned in a north-south direction, they capture the predominate wind flow which leads to areas of extreme and little precipitation. This gives rise to rainforests such as the Amazon and the Pacific Temperate Rain Forests Coregion and deserts such as the Atacama and the Mohave. Areas of permanent ice and snow cover include the tops of mountains and Northern Canada as well as Patagonia in South America. Volcanic zones are common in North and South America and coincide with areas prone to earthquakes.