South Dakota. By: Laya. Geography. South Dakota’s main cities are Pierre, Aberdeen, Sioux Falls and Watertown It’s land forms are hills, prairie and farmland. Missouri River, Traverse River, Big Sioux River and Waubay Lake. It’s population is 812,383.
1.1927-41 Gutzon Borglum sculpts the Mount Rushmore National Monument2. South Dakota passes a law requiring students to stay in school until they graduate or turn 183.1889, South Dakota becomes 40th state4.1861, government makes Dakota territory5. AD 1682 France claims South Dakota land