Sharp ridge at the edge of sand dunes with wind blown rippled sand pattern in Toksun County, northwest China's Xinjiang Uyghur Autonomous Region. (Photo: China News Service/Liu Yanmin)
Sharp ridge at the edge of sand dunes with wind blown rippled sand pattern in Toksun County, northwest China's Xinjiang Uyghur Autonomous Region. (Photo: China News Service/Liu Yanmin)
Sharp ridge at the edge of sand dunes with wind blown rippled sand pattern in Toksun County, northwest China's Xinjiang Uyghur Autonomous Region. (Photo: China News Service/Liu Yanmin)
Sharp ridge at the edge of sand dunes with wind blown rippled sand pattern in Toksun County, northwest China's Xinjiang Uyghur Autonomous Region. (Photo: China News Service/Liu Yanmin)
Sharp ridge at the edge of sand dunes with wind blown rippled sand pattern in Toksun County, northwest China's Xinjiang Uyghur Autonomous Region. (Photo: China News Service/Liu Yanmin)
Sharp ridge at the edge of sand dunes with wind blown rippled sand pattern in Toksun County, northwest China's Xinjiang Uyghur Autonomous Region. (Photo: China News Service/Liu Yanmin)