The Patagonia region encompasses the vast southernmost tip of South America, shared by Argentina and Chile, with the Andes as its dividing line. The Argentine side features arid steppes, grasslands and deserts, while the Chilean has glacial fjords and temperate rainforest. Argentina’s famed RN-40 highway goes past the pinnacles of Monte Fitz Roy and imposing Perito Moreno Glacier in Los Glaciares National Park.