The geography of South America is diverse, featuring a variety of landscapes including mountains, rainforests, deserts, and plains. The Andes Mountains, the longest mountain range in the world, run along the western edge of the continent. The Amazon Rainforest, the largest tropical rainforest, is located in the northern part and is home to a vast array of wildlife. The continent is also characterized by major rivers, with the Amazon River being the most significant, flowing through several countries. South America has a mix of climates, ranging from tropical in the north to temperate in the south, influencing its ecosystems and human activities.