The natural wonder found in South Dakota, USA, is Mount Rushmore. This iconic monument features the carved faces of four U.S. presidents: George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt. Created by sculptor Gutzon Borglum, Mount Rushmore attracts millions of visitors each year. It represents American history and ideals, making it a symbol of national pride. The site is also located near scenic areas like the Black Hills, showcasing the beauty of the surrounding landscape. Mount Rushmore remains a significant cultural and tourist attraction in the United States.