challenge: Where is the village of Olding located in relation to the Dras River?
  
  A. On the slopes of a spur, about 800 to 1,000 ft above the Dras River
  B. In the valley of the Indus River, near the city of Skardu
  C. At the confluence of the Dras River and the Indus River
  D. On the banks of the Dras River, near the village of Gangam
  Answer: 