Cithaeron or Kithairon (Κιθαιρών, -ῶνος) is a mountain and mountain range about 10 mi (16 km) long, in central Greece. The range is the physical boundary between Boeotia in the north and Attica in the south. It is mainly composed of limestone and rises to 4,623 ft (1,409 m). the northeast side of the range is formed by the mountain Pastra. The people of Plataea also personified the mountain as their primal king: "But the Plataeans know of no king except Asopus and Cithaeron before him, holding that the latter gave his name to the mountain, the former to the river". (Pausanias 9.1.2)