evidence: Mount Fitz Roy is one of the most iconic landmarks in Patagonia. The mountain stands at an impressive 3,405 meters (11,171 feet) above sea level and is part of Los Glaciares National Park. The mountain is also well-known for its unique rock formations, which are caused by wind and weather erosion. [...] Mount Fitz Roy is part of the Patagonian Andes and is located in Los Glaciares National Park, which straddles the border between Argentina and Chile. However, the mountain is firmly on the Argentinian side and can only be accessed from there. [...] The Mount Fitz Roy/Laguna de los Tres hike is one of the most beautiful in the Patagonia region, which is famous for its breathtaking landscapes.