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The Fraser River is the longest river in British Columbia, traveling almost 1400 km and
sustained by a drainage area covering 220 000 sq. km. Its source is near Mt. Robson on the
western slope of the Rocky Mountains in central British Columbia. The Fraser flows southwest,
draining into the Pacific Ocean just south of Vancouver. It discharges 112 cubic kilometres of
water per year, dumping 20 million tons of sediment into the Pacific (a sediment load of 0.179 kg
per cubic metre).