Grevena Regional Unit

Grevena (, Perifereiakí Enótita Grevenón) is one of the regional units of Greece. It is part of the region of Western Macedonia. Its capital is the town of Grevena. Geography Grevena borders the regional units of Ioannina (Epirus) to the west, Kastoria to the northwest, Kozani to the north and east, Larissa to the southeast and Trikala to the south. The Pindus mountains cover the western part of the regional unit. Other mountain ranges are Chasia in the south and Vourinos in the northeast. The longest river is Aliakmon which flows in the north and the east.