The Grand Erg Occidental, a large area of continuous sand dunes lies to the east, while the rocky ridges of the Ougarta Range rise to the west, running from northwest to southeast along the opposite side of the river from the town beyond a barren, rocky plain.

[12] Tamtert is connected by a local road to the N6 national highway between Béchar to the northwest and Adrar to the southeast.

Towns accessible to the north via the N6 include Béni Abbès and Igli, while to the south the towns of El Ouata, Béni Ikhlef, Kerzaz, and Ouled Khoudir can be accessed.

Local roads also connect the town directly to the district centers of Béni Abbès and El Ouata.

[20] The commune is composed of four localities:[21] Béchir and Marhouma lie along the Oued Saoura to the northwest between Tamtert town and Béni Abbès, while Idigh lies to the southeast about halfway to El Ouata.