Marv al-Rudh
Marw al-Rudh, or Marw on the River, stood beside the Murghab where it emerges from the mountains of Gharjistan toward the steppe. It was also called Little Marw to distinguish it from the great oasis city farther downstream. In the early Islamic conquest, al-Ahnaf ibn Qays besieged its inhabitants in their fortress. The town later prospered under the Seljuks, and Sultan Sanjar gave it a new circuit of walls. Its position linked mountain country with the irrigated lands along the Murghab.