A local historian says the Ku Klux Klan had a significant presence in the Black Hills up until the Great Depression. Charles Rambow found out that his grandparents were members, and that discovery led him to track down the history of the KKK and give public presentations about it. As Rambow tells SDPB’s Victoria Wicks, KKK membership in the Hills has died out, but occasionally there’s evidence that the Klan is still watching.