One of the ways Native tribes in the West celebrate their history and culture is through annual summer horse races. They're known as Indian Relays, and tribes call them America's first extreme sport.

Indian Relay, dubbed "America's original extreme sport," has roots dating back centuries to horse stealing raids. Native Americans are keeping the dangerous and compelling racing tradition alive.

Indian Relay, dubbed "America's original extreme sport," has roots dating back centuries to horse stealing raids. Native Americans are keeping the dangerous and compelling racing tradition alive.

Native American tribes from the United States and Canada converged on Oklahoma for the Indian Relay Horse Race this weekend, helping to revive horse heritage in the state and symbolizing a return ...