The New Student's Reference Work/Michigan, Lake
Michigan, Lake, the third in size of the five great fresh-water lakes of America and the only one lying entirely within the United States. It separates Illinois and Wisconsin from Michigan, its upper portion dividing Michigan into two parts. It is 228 miles long and from 50 to 88 broad, and covers 22,450 square miles. Its shores are low, with several lighthouses, and good harbors at Chicago, Milwaukee and Racine.