Chemnitz (Sorbian/Lusatian Kamjenica, 1953-1990 called 'Karl-Marx-Stadt'; Czech: Saská Kamenice) is a city in the Free State of Saxony, Germany. It is located in the northern foothills of the Ore Mountains. The city has a population of 248,021 (31 March 2005), and an area of 220.8 square kilometres.