South Dakota

"South Dakota is a state located in the Midwestern region of the United States. ... Pierre is the state capital and Sioux Falls... is South Dakota's largest city. ... South Dakota is bordered by the states of North Dakota, Minnesota, Iowa, Nebraska, Wyoming, and Montana. The state is bisected by the Missouri River, dividing South Dakota into two geographically and socially distinct halves, known to residents as "East River" and "West River"." [South Dakota. Wikipedia]