Does anyone have any useful (simple) information on The Blackfoot tribe (Native american)?

I am doing a project on the Blackfoot (Siksika) tribe of Montana. (I think). I need to include a map of the reservation, a map of the nomadic territory, 3 biographies on important figures, a description of and important battles with settlers or the army, tribal rituals and celebrations and how tribal activities were split amongst men women and children. Could anyone help my with some extra information? Much appreciated.