The South Dakota State Line marks the boundary between South Dakota and its neighboring states. It runs along the northern border with North Dakota and the western border with Wyoming. This line is significant for defining state jurisdiction, laws, and governance. Travelers crossing the South Dakota State Line may notice changes in scenery, culture, and local regulations. The line is often marked by signs welcoming visitors to South Dakota, highlighting attractions such as the Black Hills and Badlands National Park. These areas draw tourists and contribute to the state's economy.