![Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China\'s Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)](http://www.ecns.cn/hd/2019/05/08/68a7f0ce17e745fcbcdd1f078f58f2af.jpg)
Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China's Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)
![Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China\'s Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)](http://www.ecns.cn/hd/2019/05/08/88455a0280d44ee280960124fe3b9f2a.jpg)
Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China's Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)
![Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China\'s Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)](http://www.ecns.cn/hd/2019/05/08/712e7334d70a4c13a7331f574acc8440.jpg)
Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China's Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)
![Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China\'s Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)](http://www.ecns.cn/hd/2019/05/08/bce8eb1ac2aa4452acf62f0f3901f42e.jpg)
Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China's Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)
![Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China\'s Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)](http://www.ecns.cn/hd/2019/05/08/96f9e21d65a24981a478c697d6325d20.jpg)
Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China's Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)
![Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China\'s Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)](http://www.ecns.cn/hd/2019/05/08/e8dc59f270894dac8d68811366461344.jpg)
Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China's Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)
![Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China\'s Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)](http://www.ecns.cn/hd/2019/05/08/e6a54527b6d5491a991bcc1826bf6b0d.jpg)
Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China's Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)
![Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China\'s Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)](http://www.ecns.cn/hd/2019/05/08/794db8a515ff4d699002d7fe96e9fc98.jpg)
Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China's Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)
![Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China\'s Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)](http://www.ecns.cn/hd/2019/05/08/76166a1acc264d5aa028ea76138abcda.jpg)
Snow covers the Hongyuan Prairie in Ngawa Tibetan and Qiang Autonomous Prefecture, Southwest China's Sichuan Province, May 7, 2019, after a cold front hit. The vast grassland is a tourist attraction in the province. (Photo: China News Service/Mou Jinghong)