The Sto:lo /ˈstɔːloʊ/, alternately written as Stó:lō, Stó:lô, or Stó:lõ and historically, as Staulo or Stahlo, and historically known and commonly referred to in ethnographic literature as the Fraser River Indians or Lower Fraser Salish, are a group of First Nations peoples inhabiting the Fraser Valley and lower Fraser Canyon of British Columbia, Canada. Stó:lō is the Halqemeylem word for "river." The Stó:lō are the river people. The first historically documented reference to these people as "the Sto:lo" occurs in Catholic Oblate missionary records from the 1880s. Prior to this, references were primarily to individual tribal groups such as Matsqui, Ts’elxweyeqw, or Sumas.