Placard at falls says, Yantic falls, know as Indian Leap, was a favorite encampment of the Mohegan Indians. In 1643 Uncas, Sachem of the Mohegans, led his warriors in the famous battle against their rival tribe the Narragansetts. During the battle, the Narragansetts were pursued by the Mohegans. Legend has it that a band of Narragansetts, unfamiliar with the territory, unknowingly reached the high treacherous escarpment of the Falls. The Narragansetts, rather than surrender, attempted to leap the chasm. Unsuccessful, they plunged to their deaths into the abyss below.