Yankton and Siux Falls 
 You're welcome! 
 Do you happen to know what those cities are? 
 Not too sure, but I do know they have had a lack rainfall, extremely high temperatures and inappropriate cultivation techniques produced what was known as the Dust bowl in South Dakota. 
 Hello! I'm planning a trip to South Dakota, so I would like to know more about transportation there.
Yankton and Siux Falls