The country that features both the Andes Mountains and the Amazon Basin is Brazil. This vast nation has diverse geographic features, from the towering peaks of the Andes in the west to the expansive Amazon rainforest in the north and northwest. The Andes play a crucial role in regulating climate and rainfall patterns across the region, while the Amazon Basin is home to an incredible variety of biodiversity and ecosystems. Brazil's unique landscapes contribute significantly to its cultural identity, resources, and environmental significance, making it a key player in global ecology.