Yellowstone is breathtaking, but can be crowded and expensive. This South Dakota state park is a cheaper and less crowded alternative.

An active member of the Air Force was arrested Friday for allegedly killing a 21-year-old woman on his South Dakota military base, authorities announced.

South Dakota cowboys and cowgirls are rounding up a herd of more than 1,500 bison as part of an annual effort to maintain the health of the species.