Having lived near and worked with the Northern Cheyenne "Tsi-Tsi-Tas") tribe here in the western U.S., your question has played an important part in archeological investigation into the Plains Indian's life habits.
Here's how:
Although nomadic in existence, the moving of the small bands (usually matriarically family related) throughout most of the year as well as coming together into large gatherings , especially at 'Sun Dance', was governed primarily by the availability of game animals, most notably " hotowa'e" or buffalo ("ta Tanka" in Sioux language). But, either in smaller groups or larger gatherings, many of the individual's daily habits were under strict rules and one or more of the Warrior Societies (such as 'Hotamétaneo'o' or Dog Soldiers) would patrol the village assuring the 'citizens' adherence to the rules. Latrines were established and were quite a distance from the village and segregated as to men and women. Breaking of such rules would invite severe punishment, including whip-lashings.
Archaeological digs are eager to find these sites since they provide a lot of information as to the life styles and dietary habits of the tribal and band members...