Az-Zulfī
Zilfi lies on a plain at the northern end of the Tuwayq escarpment, between rocky heights and the sands of al-Thuwayrat. Its wells and fertile ground supported agriculture in a landscape where dunes press close to the settlements. Early Arabic geographical writing describes Zilfi as a watering place of the Banu Anbar of Tamim. Wadi Marakh runs toward the Rawdat al-Sablah east of the town, while neighbouring valleys preserve traces of old farms and habitation.