For organizational purposes, this site refers to the original city of Tangier that was surrounded by the old walls, as seen in the map published in Tanger Et Sa Zone, the seventh volume of Villes Et Tribus du Maroc. Though the walls have changed over time, in today's terms this is roughly the area bounded by rue du Portugal, rue de la Plage, rue d'Italie which becomes rue de la Kasbah, ultimately leading to Borj Ben Amar and Borj Na'am. The wall on the north side of rue Riad Sultan is the northern border along the cliff, and it once continued through to Borj Dar el-Baroud.  Only portions of the eastern wall still exist, but the boundary is easily defined, running between the area containing the Customs House and Port and, proceeding from the north to the south, the Hotel Continental, Borj al-Salaam, Borj al-Hajaoui (the terrace in front of the Great Mosque), and ending the circle at the square where Bab Dar Dbagh meets rue du Portugal.