Illinois topographic maps

Average elevation: 199 m

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Average elevation: 175 m

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Average elevation: 259 m

The topography of Champaign County was formed by the Wisconsin Glacier about 20,000 years before the present. Lobes of ice from what is now Lake Michigan crossed the county, creating a deep pile of glacial soil, up to 300 feet thick, topped by numerous moraines forming small, flat watersheds with no outlets.

Average elevation: 217 m

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Average elevation: 198 m

Highwood is located in southeastern Lake County at 42°12′19″N 87°48′44″W / 42.205357°N 87.812345°W / 42.205357; -87.812345, on a ridge 100 feet (30 m) above the elevation of Lake Michigan.

Average elevation: 198 m

Average elevation: 199 m

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Waukegan is located at 42°22′13″N 87°52′16″W / 42.37028°N 87.87111°W / 42.37028; -87.87111 (42.3703140, −87.8711404). Waukegan is on the shore of Lake Michigan, about 11 miles (18 km) south of the border with Wisconsin and 37 miles (60 km) north of downtown Chicago at an elevation around…

Average elevation: 197 m

Average elevation: 198 m

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Average elevation: 156 m

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Average elevation: 188 m

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Average elevation: 179 m

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Average elevation: 197 m

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Average elevation: 184 m

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Average elevation: 182 m

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Average elevation: 200 m

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Average elevation: 194 m

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Average elevation: 179 m

Average elevation: 189 m

Average elevation: 198 m

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Average elevation: 186 m

Average elevation: 193 m

Average elevation: 199 m

Average elevation: 189 m