Klickitat people
In the early 1850s, the Klickitat Tribe raided present-day Jackson County, Oregon from the north and settled the area. Modoc, Shasta, Takelma, Latgawas, and Umpqua Indian tribes had already lived within the present boundaries of that county.
Piikani Nation
The other members of the Confederacy are the Blackfoot-speaking "Káínaa" or Blood and the "Siksiká" or Blackfoot, as well as the "Tsuu T'ina" or Sarcee who only became allied later and spoke an unrelated language. At the time the treaties were signed, the Northern Peigan were situated on the Oldman River, west of Lethbridge, Alberta, Canada, to the west of the "Kainai" tribe.