Senâm is the name of a long, low hill situated in M'sila Province, Algeria, southwest of Algiers. The hill is covered with a large number of stone circles.
![Thumb](http://upload.wikimedia.org/wikipedia/commons/thumb/6/65/Stone_circle_at_the_Sen%C3%A2m%2C_Algeria.jpg/320px-Stone_circle_at_the_Sen%C3%A2m%2C_Algeria.jpg)
These stone circles are built of natural limestone, with standing slabs two to three feet high. The diameter of the circles varies between about 23 feet (± 7 meter) and 34 feet (± 10 meter). The entrance to the circles is on the southeastern side of the hill, through a larger, surrounding circle. It is uncertain if the niche was once roofed. The center of the circle is filled with stones for unknown purposes, possibly as a grave.[1]