Maps include in CPLA set: 1): The Southwest - November 1982; 2)Hawaii - November 1983; 3) Deep South - August 1983; 4)Alaska - January 1984; 5) Far West - April 1984; 6) Central Rockies - August 1984; 7) Northern Approaches - February 1985; 8) Ohio Valley - December 1985; 9) Texas - March 1986; 10) Northern Plains - December 1986; 11) New England - February 1987; 12) Great Lakes - July 1987; 13) West Indies - November 1987. For more info on the series see: http://www.geographic-maps-search.com/Making-of-America.html