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52 Driftless Area (far northwestern Illinois) 52a - Savanna Section. 52b - Paleozoic Plateau/Coulee Section. 53 Southeastern Wisconsin Till Plains (northern Illinois) 53a - Rock River Drift Plain. 53b - Kettle Moraines. 54 Central Corn Belt Plains (northern and central Illinois) 54a - Illinois/Indiana Prairies. 54b - Chicago Lake Plain.
2 Puget Lowland. 3 Willamette Valley. 111 Ahklun Mountains and Kilbuck Mountains. 113 Alaska Peninsula Mountains. 115 Cook Inlet. 119 Pacific Coastal Mountains. 120 Coastal Western Hemlock-Sitka Spruce Forests. The corresponding CEC ecoregion in Canada is called the Pacific Maritime Ecozone.
Statistics. Illinois has a maximum north–south distance of 390 miles (630 km) and 210 miles (340 km) east-west. Total area is 57,918 square miles (150,010 km 2), ranked 25th in size of the 50 states. Water area is 2,325 square miles (6,020 km 2); Lake Michigan accounts for most of this. Charles Mound in the northwest Driftless Area is the ...
The Southeastern Wisconsin Till Plains is an ecoregion in southeastern Wisconsin and northeastern Illinois in the United States. It is a Level III ecoregion in the classification system of the United States Environmental Protection Agency (EPA), where it is designated as ecoregion number 53. The ecoregion represents a transition between the ...
Köppen climate types of Illinois (with counties overlaid), using 1991-2020 climate normals. The Climate of Illinois describes the weather conditions, and extremes, noted within the state of Illinois, United States, over time. Because of its nearly 400-mile (640 km) length and mid-continental location, Illinois has a widely
The State Highway System was created in 1918 with the first State Bond Issue (SBI) Routes, 1 through 46. Bonds were floated to pay for specific routes. SBI # 1 paid for Route 1, and so on. These initial 46 route numbers marked the major infrastructure roads desired by the state legislature in 1918. Remarkably, many of these numbers still exist ...
Southeastern Plains (ecoregion) The North American Southeastern Plains are a Level III ecoregion designated by the Environmental Protection Agency (EPA) in ten U.S. states. The region takes a U shape starting in western Tennessee, going south through eastern Mississippi, and forming most of Alabama. On the eastern side, the plains lie between ...
Illinois Route 14 (IL 14) is a major east–west highway in southern Illinois. It runs from U.S. Route 51 south of Du Quoin to the New Harmony Toll Bridge over the Wabash River to State Road 66 at the Indiana state line. This is a distance of 76.24 miles (122.70 km). [1]