The Seymour River is a river in the North Shuswap of British Columbia, Canada. It begins in the Upper Seymour River PP north of Shuswap Lake. Its main tributaries are Smoky House & Ratchford Creek. Just below Ratchford creek confluence lies the Seymour River Falls, a treacherous 3-tiered waterfall on the Lower Seymour River. There are no signs to the falls, however, people who use common sense will notice that the 110 Seymour River FSR crosses the Seymour River above a narrow gorge. Although that is the gorge into which the falls plunge, they cannot be seen unless you continue 200 metres north to a wide spot in the road with a faint trail leading through the forest to the falls. From there, it flows south into the northern end of the Seymour Arm of the lake.