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In extreme northwestern Illinois the Driftless Zone, a region of unglaciated and therefore higher and more rugged topography, occupies a small part of the state. Charles Mound , located in this region, is the state's highest elevation above sea level .
The Mississippi River, fed by ice-sheet melt and water from glacial lakes, cut a deep valley as it flowed through the region. The formation of this valley has been constrained as having occurred between 2.5 and 0.8 million years ago. [11] Among the oldest glacial features is the Buffalo Hart Moraine, located in Logan County.
Autumn in the Driftless Area of Cross Plains, Wisconsin. The Driftless Area, also known as Bluff Country and the Paleozoic Plateau, is a topographic and cultural region in the Midwestern United States [1] that comprises southwestern Wisconsin, southeastern Minnesota, northeastern Iowa, and the extreme northwestern corner of Illinois.
Illinois' ecology is in a land area of 56,400 square miles (146,000 km 2); the state is 385 miles (620 km) long and 218 miles (351 km) wide and is located between latitude: 36.9540° to 42.4951° N, and longitude: 87.3840° to 91.4244° W, [1] with primarily a humid continental climate.
In northern Illinois the moraines merge into a composite moraine, including parts of earlier stages.. The Valparaiso morainic system in Michigan includes the morainic belt along Lake Michigan, from the Grand River Valley south. In places it consists of two or more ridges. These ridges coalesce and separate repeatedly.
Fox Valley (Illinois) This page was last edited on 24 February 2022, at 16:47 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...
Geography of Illinois by populated place (5 C, 1 P) * Illinois geography-related lists (1 C, 24 P) B. Borders of Illinois (2 C, 7 P) C. Illinois counties (115 C, 105 P)
The topography of the area is characterized by hilly terrain and wooded ridges. Common features found in the Scales Mound area include canyons, bluffs, ravines and palisades. [8] Near Charles Mound, the highest point in Illinois at 1235 feet, Scales Mound is said to be "At the Top of Illinois". [9]