Broke Leg Falls is located on the eastern edge of the Daniel Boone National Forest and is a historic roadside rest during the early national highway days. The building of the Mountain Parkway interstate was the beginning of Broke Leg's decline.Broke Leg Falls is located on the eastern edge of the Daniel Boone National Forest and is a historic roadside rest during the early national highway days. The building of the Mountain Parkway interstate was the beginning of Broke Leg's decline.