Ramlat al-Sab'atayn
Region of desert in north-central Yemen

The Ramlat al-Sab'atayn (Arabic: رملة السبعتين, lit. 'Sand of the Two Sevens') is a desert region that corresponds with the northern deserts of modern Yemen (Al-Jawf, Marib, Shabwah governorates) and southwestern Saudi Arabia (Najran province).
It comprises mainly transverse and seif dunes and covers an area of about 100 by 240 kilometres (60 by 150 mi), roughly 26,000 square kilometres (10,000 sq mi).
The Ramlat as Sab'atayn includes part of what was known to medieval Arab geographers as the Sayhad (Arabic: صيهد, romanized: Ṣayhad). It extends from al-Khawr to the edge of the Rub' al-Khālī or Empty Quarter. It includes the Yemeni muhafazahs of al-Jawf, Ma'rib and Shabwa.
Sources and credits
This article is adapted from the Wikipedia article “Ramlat al-Sab'atayn”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Yemeni Desert.jpg by Aysegul Tastaban, CC BY 2.0
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