It was located on the territory of the current commune of Béni Hamidane in the Constantine Province of eastern Algeria.

Today one can cross it by following the main street as it goes from a monumental portal up between the houses, passing by the forum, a small square, and the curia.

Their circular mausoleum can still be seen some kilometers to the N. The monument was erected by Lollius Urbicus, prefect of the city of Rome under Antoninus Pius.

One can admire the mausoleum that Quintus Lollius Urbicus built, a native of Tiddis (and son of a romanised Berber landowner) who then became prefect of Rome.

[9] Today, Tiddis is an authentic Roman site called Res eddar or the "peak of the House" located in the Gorge of the Khreneg, just north of Cirta.