Iowa, state, United States
(Encyclopedia)
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Iowa īˈəwə [key], midwestern state in the N central United States. It is bounded by the Mississippi River, across which lie Wisconsin and Illinois (E); Missouri (S); Nebraska and South Dako...
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United States
(Encyclopedia)
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United States, officially United States of America, republic (2015 est. pop. 319,929,000), 3,539,227 sq mi (9,166,598 sq km), North America. The United States is the world's third l...
National Parks and Monuments (table)
(Encyclopedia)
National Parks and Monuments
1
National Parks and Monuments
National Monuments
National and International Historic Sites and Historical Parks
National Memorials
National Battlef...
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