Illinois topographic maps

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.

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Average elevation: 179 m

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According to the 2021 census gazetteer files, Berwyn has a total area of 3.90 square miles (10.10 km2), all land. Bordering cities include Oak Park to the north, Cicero to the east, Stickney to the south, Lyons, Riverside, North Riverside, and Forest Park to the west. Geologically, Berwyn is predominately…

Average elevation: 188 m

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Between 1900 and 1920 the village saw its population more than triple to 7,814. In 1922 the village adopted the "Plan of Wilmette", which outlined a vision for its future that included open spaces along Green Bay Road and the elevation of the railroad tracks to provide unobstructed flow of traffic between the…

Average elevation: 186 m

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