Illinois topographic maps

Average elevation: 206 m

Average elevation: 138 m

Average elevation: 147 m

According to the US Census Bureau, the county has a total area of 602 square miles (1,560 km2), of which 584 square miles (1,510 km2) is land and 18 square miles (47 km2) (3.0%) is water. The average elevation is around 400 feet (120 m), except near the Mississippi River.

Average elevation: 143 m

Average elevation: 204 m

Average elevation: 185 m

Average elevation: 242 m

Average elevation: 128 m

Average elevation: 127 m

Average elevation: 202 m

Average elevation: 195 m

The village is surrounded on three sides by upper-income communities, with Highland Park on the north, Northbrook on the west, and Winnetka to the south. The Skokie Lagoons are located in the forest preserve to the immediate west of the village. The same forest preserve has a bicycle trail that connects to…

Average elevation: 194 m

Average elevation: 144 m

Average elevation: 241 m

When Chicago was founded in 1837, most of the early building was around the mouth of the Chicago River, as can be seen on a map of the city's original 58 blocks. The overall grade of the city's central, built-up areas is relatively consistent with the natural flatness of its overall natural geography,…

Average elevation: 182 m

Average elevation: 178 m

Average elevation: 246 m

Average elevation: 161 m

Average elevation: 128 m

Average elevation: 217 m

Average elevation: 267 m

Topographically, the village can be roughly divided into three zones. The Illinois River floodplain, the bluff, and the plateau. While its eastern border is fairly regular with the river's edge, the rest of its municipal border, with Peoria, is quite irregular and convoluted.

Average elevation: 182 m

Average elevation: 200 m

Average elevation: 221 m

Average elevation: 216 m

Average elevation: 242 m

Average elevation: 196 m