| The Columbia Gazetteer of North America. 2000. |
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| Floyd River |
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| Floyd River, 92 mi/148 km long, NW Iowa; rises near Sanborn in OBrien co., flows generally SW, past Sheldon and Le Mars, to the Missouri at Sioux City. West Branch of Floyd R. rises near Boyden, flows c.40 mi/64 km SW to Floyd R. near Merrill. |
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| | | The Columbia Gazetteer of North America. Copyright © 2000 Columbia University Press. |
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