All U.S. states have nicknames, many with an eye toward a public relations reminder of a prominent landmark, or tourist destination, i.e. Arizona: the Grand Canyon State, or Minnesota: Land of 10,000 Lakes (actually, there are 12,000 lakes, and the state is also known as the North Star State).
South Dakota is officially known as the Mount Rushmore State in honor of the mountain carving of U.S. presidents in the Black Hills.
But the state has also been known by other, more obscure, nicknames and slogans over its 128-year history.
From the South Dakota State Historical Society are the many nicknames and slogans of South Dakota.