The term BUCKEYE'S STATE is a reference to the U.S. state of Ohio, which has four letters in its name. Ohio is located in the Midwestern United States and is known as the 'Buckeye State' due to the prevalence of the buckeye tree in the state. Ohio is bordered by Michigan, Pennsylvania, West Virginia, Kentucky, Indiana, and Lake Erie. It is the seventh most populous state in the country and is home to many major cities, including Columbus, Cleveland, Cincinnati, and Toledo.