The Fraser River is the longest river within British Columbia, Canada, rising at Fraser Pass near Mount Robson in the Rocky Mountains and flowing for , into the Strait of Georgia at the city of Vancouver. It is the 10th longest river in Canada. The river's annual discharge at its mouth is or , and it discharges 20 million tons of sediment into the ocean. The river is named for Simon Fraser, who led an expedition on behalf of the North West Company from the site of present-day Prince George almost to the mouth of the river. The river's name in the Halqemeylem (Upriver Halkomelem) language is Sto:lo, often seen archaically as Staulo, and has been adopted by the Halkomelem-speaking peoples of the Lower Mainland as their collective name, . The river's name in the Dakelh language is Lhtakoh. The Tsilhqot'in name for the river, not dissimilar to the Dakelh name, is ʔElhdaqox, meaning Sturgeon (ʔElhda) River (Qox).