Saarland , also called Saar , Land state in the southwestern portion of Germany. It is bounded by the state of Rhineland-Palatinate to the north and east and by the countries of France to the south and southwest and Luxembourg to the northwest. Area square miles 2, square km. The heart of Saarland is an area of thickly forested hills that is crossed from southeast to northwest by the valley of the Saar River. The small Blies and Prims rivers flow into the Saar River. The annual precipitation is about 31 inches mm.