Dakota del Sur, or South Dakota, is a state located in the Midwestern region of the United States. It is known for its diverse geography, which includes the Black Hills, the Badlands, and the vast prairies. The state capital is Pierre, while its largest city is Sioux Falls. South Dakota is rich in history and culture, home to the famous Mount Rushmore National Memorial, which features the carved faces of four U.S. presidents. The state also has a significant Native American heritage, with several reservations, including the Pine Ridge Indian Reservation.