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Illinois main natural resources are soybeans corn and pigs The main fossils in Illinois are plant fossils veritable fossils and sponges Minerals mined in Illinois are limestone dolomite and shale The Illinois river flows into the Mississippi river The main fish found in the Illinois river are the White Bass channel catfish largemouth bass pan fish sauger and and walleyes Illinois river is 439 kilometers long and 439 kilometers deep Illinois has about eight locks to let ships in and out Illinois main industries are agriculture mining and manufacturing
