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Illinois - 600 feet
At 600 feet of sea level rise, there are a few islands left of Illinois. Some of these are in the Shawnee National Forest location with the highest peak being 1,065 feet above sea level. There are also a few islands in the northern portion of the state. Charles Mound is the largest and the highest point in Illinois at 1,235 feet above sea level.
Select Sea Level Rise (in feet):
To use the map above, select the ocean level rise you would like to view, use the plus and minus keys on the keyboard or the mousewheel to zoom in and out. Click and drag on the map to change the viewing location.

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