The Confederacy had a territory that stretched from the North Saskatchewan River (called Ponoká'sisaahta) along what is now Edmonton, Alberta, in Canada, to the Yellowstone River (called Otahkoiitahtayi) of Montana in the United States, and from the Rocky Mountains (called Miistakistsi) and along the South Saskatchewan River to the present Alberta-Saskatchewan border (called Kaayihkimikoyi), east past the Cypress Hills. They called their tribal territory Niitsitpiis-stahkoii (ᖹᐟᒧᐧᐨᑯᐧ ᓴᐦᖾᐟ)- Original People