Is Lake Erie the only one of the great lakes entirely in the us?

No, Lake Erie is not the only Great Lake entirely in the United States; in fact, no Great Lake is entirely within the U.S. Lake Michigan is the only one that is completely within U.S. borders, while Lakes Superior, Huron, and Ontario are shared with Canada. Lake Erie, on the other hand, is bordered by the U.S. states of Ohio, Pennsylvania, and New York, as well as the Canadian province of Ontario.