The operating site of the STPM is located in the center of the Tunisian republic : Mountain of El Kbar, Imada Mzara, Delegation of Bir El Hfay, Governorate of Sidi Bouzid. Le access track to the quarry (5 km length) begins from the 15 th Km of the road relating Sidi Bouzid to Bir El Hfay.

The following map traces the path leading to the quarry :