Djebel Serj is a limestone mountain located in central Tunisia, in the Tunisian Dorsal. It peaks at 1,357 meters above sea level.
It is located twenty miles southeast of Siliana and sixty miles north-west of Kairouan, in the middle of the ridge, halfway between Grombalia and Jebel Tamsmida. It measures about five kilometers wide by twenty kilometers long.
The origin of the name “Serj” comes from the particular form of the mountain ridge which resembles the shape of a saddle. This merger has fueled many legends and myths surrounding the formation of this singularity in the populations surrounding the Djebel.
The area was declared a national park by decree of 29 March 2010. It has an area of 17.2 km2.
This mountain is considered a hotbed of caving in Tunisia: there are indeed the most beautiful caves found so far that Aïn Dhab and the Cave of the Mine.