sentences:  Yaak River
  
  The Yaak River (spelled Yahk River in Canada) is a tributary of the Kootenay River (spelled Kootenai in the United States) in the U.S. state of Montana and the Canadian province of British Columbia.The Yaak River originates near Yahk Mountain, in the Yahk Range, part of the Purcell Mountains, in southeast British Columbia.