This cave is located in the Shams Abad Mountains, 15 km. to the south of Arak. To the right of the rocky wall of the mountain is the first opening of the cave and the second one exists in the higher altitudes.
Sooleh Khoonzab means “the hole of a house which has a spring”. The cave is 27 m. in length and 1.5 m. wide. Higher up in this vicinity, there is another cave which has springs with drinking water.