The State of Iowa is a state in the midwestern region of the United States of America. It is the 29th state of the United States, having joined the Union on December 28, 1846. The state is named for the Native American Ioway people. It is known as the "Hawkeye State" or the "Tall Corn State".

The Mississippi River forms the eastern boundary of the state. The boundary along the west is formed by the Missouri River south of Sioux City and by the Big Sioux River north of Sioux City. There are several natural lakes in the state, most notably Spirit Lake, West Okoboji Lake, and East Okoboji Lake in northwest Iowa (see Iowa Great Lakes). Man-made lakes include Lake Odessa[1], Saylorville Lake, Lake Red Rock, Coralville Lake, Lake MacBride and Rathbun Lake.

The topography of the state is gently rolling plains. Loess hills lie along the western border of the state, some of which are several hundred feet thick. In the northeast, along the Mississippi River, is a section of the Driftless Zone, which in Iowa consists of low rugged hills covered with conifers—a landscape not usually associated with this state.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia listing for "Iowa".