The last time we went to SoDak, in 2003, we stopped at the usual places (Mt. Rushmore, Wall Drug, Crazy Horse). This time we're planning to see the Badlands and Custer State Park.
Can you tell me about some other, not so popular places that we should check out? We haven't charted our route yet, but I'm assuming we'll be
driving out on I-90 from Minnesota. But we'd be game to change that if we hear about something to see in another area.