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Home » United States Maps and Geology » Illinois Maps and Geology

Illinois Geology - Map of Illinois

Illinois Rivers - Illinois Earthquakes - Illinois Rocks & Minerals

Illinois Geographic Resources

Illinois Physical Map

Illinois Elevation Map

Illinois County Map

Illinois Cities & Road Map

Illinois River & Lake Map

Illinois Satellite Image

Illinois River Levels
Map of Illinois rivers

River Levels

USGS has a clickable map of Illinois rivers and streams that gives you access to real-time river levels throughout Illinois. River stage, discharge and other information can be accessed online. Or view a lake and river map of Illinois.

Illinois Geography Statistics

Area of Illinois: 55,584 sq. miles

Illinois Population: 12653544

Highest Point in Illinois
Charles Mound at 1,235 feet feet

Lowest Point in Illinois
Mississippi River at 279 feet

There are 102 counties in Illinois

Illinois Earthquakes
Map of Illinois earthquakes
The National Earthquake Information Center maintains an Illinois earthquake map and an archive of Illinois earthquake information.

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Learn about Illinois minerals and Illinois mineral production.

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