 They were exiled to the Quapaw Agency in Indian Territory (now Oklahoma), where they were colocated with the Shawnee people from east of the Mississippi River.In the 1950s the federally recognized status of the Klamath Reservation (where other Modoc were colocated) and the Modoc was terminated, ending federal assistance to the two tribes.The Modoc tribe in Oklahoma reorganized independently and gained federal recognition in 1978.