Illinois topographic maps

Average elevation: 226 m

Average elevation: 205 m

Like its namesake, Plainfield's topography is generally flat. Thousands of years ago, land in greater Plainfield used to be part of the bed of proglacial Lake Wauponsee. However, the lake did not hold up long, and eventually drained into the Illinois River valley. The lake left behind a very flat landscape.…

Average elevation: 194 m

Average elevation: 228 m

Average elevation: 258 m

Average elevation: 128 m

Byron is located in Byron Township at the junction of Illinois Route 72 and Illinois Route 2. Byron's topography includes a man-made prairie and the Rock River that passes through the town. It is generally flat and is ideal for farming in most regions. According to the 2010 census, Byron has a total area of…

Average elevation: 226 m

Average elevation: 198 m

Average elevation: 219 m

Average elevation: 187 m

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Average elevation: 223 m

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Average elevation: 168 m

Average elevation: 184 m

Average elevation: 148 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

Average elevation: 129 m

Average elevation: 171 m

Average elevation: 138 m

Average elevation: 130 m

Average elevation: 133 m

Average elevation: 224 m

Average elevation: 123 m

Average elevation: 184 m

Average elevation: 223 m

Average elevation: 188 m

Average elevation: 215 m

Average elevation: 240 m

Average elevation: 164 m

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Average elevation: 207 m

Average elevation: 192 m

Due to Paxton having the highest elevation points in the area, the Illinois Central Railroad dug out ground so that the railroad could move at the same elevation, but underneath the city of Paxton. When the railroad was cut (around the 1920s), several bridges were built across the railroad to connect the east…

Average elevation: 239 m

Average elevation: 201 m

Average elevation: 199 m

Average elevation: 213 m

Average elevation: 183 m

One of the main factors determining the settlement of Mattoon and Coles County in general was the topography. Coles County straddled a timberline in the southern half and prairie in the north. The forested areas were primarily fed by two major rivers: the Embarras River in the east and the Kaskaskia in the…

Average elevation: 220 m

Average elevation: 132 m

Average elevation: 179 m

Average elevation: 126 m

Average elevation: 234 m

Average elevation: 143 m

Average elevation: 179 m

Average elevation: 207 m

Average elevation: 135 m

Average elevation: 186 m

Average elevation: 165 m

Average elevation: 221 m

Average elevation: 188 m

Average elevation: 262 m

Average elevation: 162 m

Average elevation: 224 m

Average elevation: 156 m

Average elevation: 208 m

Average elevation: 227 m

Average elevation: 188 m

Average elevation: 143 m

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Average elevation: 146 m

Average elevation: 230 m

Average elevation: 179 m

Average elevation: 179 m

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Average elevation: 230 m

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Average elevation: 205 m

Average elevation: 167 m

Average elevation: 111 m

Average elevation: 217 m

Average elevation: 276 m

Average elevation: 153 m

Average elevation: 219 m

Average elevation: 198 m

Average elevation: 232 m

Average elevation: 162 m

The park is located in the 12 mile long Zion Beach Ridge Plain. The Zion Beach Ridge Plain is 3,700 years old and composed of curvilinear ridge-and-swale topography. The beach ridges support black oak savanna habitat, while wetlands dominate the swales. The Zion Beach Ridge Plain has been migrating south…

Average elevation: 178 m

Average elevation: 244 m

Average elevation: 197 m

Average elevation: 206 m

Average elevation: 208 m

Average elevation: 194 m

Average elevation: 220 m

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Average elevation: 182 m

Average elevation: 195 m

Average elevation: 182 m

Average elevation: 163 m

Average elevation: 265 m

Average elevation: 184 m

Average elevation: 200 m

Average elevation: 229 m

Average elevation: 240 m

Average elevation: 194 m

Average elevation: 177 m

Average elevation: 198 m