Ostwestfalen-Lippe is the eastern region of the German state of North Rhine-Westphalia, congruent with the administrative region of Detmold and containing the eastern part of Westphalia, joined with the Lippe region. The region has a population of about two million inhabitants. The region includes the cities of Bielefeld, Paderborn and Gütersloh, and the major towns of Minden, Detmold and Herford. The highest hill of Ostwestfalen-Lippe is the Totenkopf.