Tomb IGN13 is located on the southwest side of the massif in sector III of the AlMahjar necropolis. The tomb was carved at the highest point of this side of the massif, but the height of the facade was limited by the presence of deep and wide cavities in the upper part. The facade faces southwest and is characterized by two half-crowsteps, an Egyptian entablature with a cornice, torus moulding, and architrave, followed by an Ionic entablature with an architrave and cornice. The entablatures are divided by an attic, unusual for its limited height. The architrave is supported by two angular pilasters with Nabataean Corinthian capitals and a necking. A central cartouche, devoid of inscription, is carved in relief on the facade and has a nearly quadrangular shape.
Les tombeaux nabatéens de Hegra vol. II Nehmé L. Académie des inscriptions et belles-lettres Paris 2015 pp.32-34
The entrance is framed by an architrave topped by a cornice and two pilasters. The lower part of the facade, which includes the lower portions of the angular pilasters and the entrance, remains unfinished, and the work appears to have been interrupted. The interior consists of an irregular rectangular burial chamber with a burial cell on the left side of the counterfaçade and another small one on the right wall. A deep rectangular niche is visible on the left wall. The entrance underside features lateral recesses likely used for a door-closing mechanism.