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Illinois is in the midwestern United States. Surrounding states are Wisconsin to the north, Iowa and Missouri to the west, Kentucky to the south, and Indiana to the east. Illinois also borders Michigan, but only via a northeastern water boundary in Lake Michigan. Nearly the entire western boundary is the Mississippi River, except for a few areas where the river has changed course. Illinois' southeastern and southern boundary is along the Wabash River and the Ohio River. Whereas, its northern boundary and much of its eastern boundary are straight survey (longitudinal and latitudinal) lines. Illinois has a maximum north-south distance of 390 miles (630 km) and 210 miles (340 km) east-west. ==Statistics== *Illinois has a maximum north-south distance of and east-west. *Total area is , ranked 25th in size of the 50 states. *Water area is ; Lake Michigan accounts for most of this. *Charles Mound is the highest point in the state at 376 meters above sea level. *The Mississippi River at Cairo, Illinois is the lowest point, at . *Average elevation is above sea level. *McLean County is the largest county in terms of land area (1,184 sq mi.), while Cook County is the largest county in terms of population (5,327,777, as of 2004). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Geography of Illinois」の詳細全文を読む スポンサード リンク
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