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The course and watershed of the Vermillion River
The Vermillion River is a tributary of the Missouri River, 96 miles (154 km) long, in eastern South Dakota in the United States.
It is formed by the confluence of the East Fork Vermillion River and West Fork Vermillion River. The East Fork, approximately 103 miles (166 km) long, rises in Lake Whitewood in Kingsbury County on the Coteau des Prairies. The West Fork, approximately 108 miles (174 km) long, rises in Miner County. Both forks flow south, roughly parallel, joining east of Parker. The combined river flows south and joins the Missouri 5 miles (8 km) south of Vermillion. Its tributaries include White Stone Creek and Baptist Creek.
- ^ a b c U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed March 30, 2011
Coordinates: 42°43′52″N 96°53′26″W / 42.7311°N 96.8906°W