The Sabar or Răstoaca is a left tributary of the river Argeș in Romania.[1][2] It discharges into the Argeș in Valea Dragului.[3] Its source is near the village Glâmbocel, west of Târgoviște. For much of its length, it flows parallel to and at a short distance from the Argeș. Its length is 174 km (108 mi) and its basin size is 1,346 km2 (520 sq mi).[2]