La Salle, city (1990 pop. 9,717), La Salle co., N Ill., on the Illinois River; settled 1830, inc. 1852. It forms a tricity unit with Peru and Oglesby. Corn, wheat, and soybeans are grown, and cattle and hogs are raised. Manufactures include chemicals, cement, circuit boards, and nonferrous metal products. The city developed as an important water transportation center after the opening of the Illinois and Michigan Canal in 1848.
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