So'taeo'o
The So'taeo'o, more commonly called the Suhtai or Sutaio, were one of the two closely related tribes that together became the Cheyenne, speaking a dialect only slightly different from that of the Tsetsehesahese. In early times they shared the Great Lakes woodland life of the other Cheyenne, village-dwelling farmers and wild-rice harvesters in Minnesota.
Their prophet Erect Horns was said to have received the Sacred Buffalo Hat bundle at Stone Hammer Mountain, and his vision persuaded the people to give up earth lodges and farming for tipis and mounted bison hunting on the plains.
They kept their own ceremonies, including the Sun Dance, and the keeper of the Sacred Buffalo Hat, paired with the Sacred Arrows of the Tsetsehesahese, always had to be a So'taeo'o. They traveled and fought alongside the Tsetsehesahese and formally merged with them after 1832.