Yaks, known as "Sails of the Plateau", are seen in the snow. On September 4th, the Haibei Tibetan Autonomous Prefecture in northwest China's Qinghai Province saw ongoing snowfall, covering the endless Qilian Mountains in a mist. [Photo/Xinhua]

Herders are going home with their herds. On September 4th, the Haibei Tibetan Autonomous Prefecture in northwest China's Qinghai Province saw ongoing snowfall, covering the endless Qilian Mountains in a mist. [Photo/Xinhua]

The smoke streams from chimneys on the meadow. On September 4th, the Haibei Tibetan Autonomous Prefecture in northwest China's Qinghai Province saw ongoing snowfall, covering the endless Qilian Mountains in a mist. [Photo/Xinhua]

 
The green grass in a snowfall in northwest China's Qinghai Province. On September 4th, the Haibei Tibetan Autonomous Prefecture in northwest China's Qinghai Province saw ongoing snowfall, covering the endless Qilian Mountains in a mist. [Photo/Xinhua]

The Qilian Mountains are covered by the snow. On September 4th, the Haibei Tibetan Autonomous Prefecture in northwest China's Qinghai Province saw ongoing snowfall, covering the endless Qilian Mountains in a mist. [Photo/Xinhua]

Herders are worshipping in the snow. On September 4th, the Haibei Tibetan Autonomous Prefecture in northwest China's Qinghai Province saw ongoing snowfall, covering the endless Qilian Mountains in a mist. [Photo/Xinhua]

The scenery of Qilian Mountains after a snowfall in northwest China's Qinghai Province. On September 4th, the Haibei Tibetan Autonomous Prefecture in northwest China's Qinghai Province saw ongoing snowfall, covering the endless Qilian Mountains in a mist. [Photo/Xinhua]