Iowa

Iowa, river, 329 mi (529 km) long, rising in the lakes of N Iowa and flowing SE to the Mississippi River, SE Iowa; Cedar River (300 mi/483 km long) is its chief tributary. A power dam crosses the gorge at Iowa Falls. The Iowa River has an extensive flood-control system; Coralville Dam and reservoir, N of Iowa City, is the largest unit.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

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