Sanitary workers clean garbage left by unruly tourists on Niubei Mountain in Yingjing County, Yaan City, Southwest China’s Sichuan Province. Some hikers skirted a check point to climb the mountain, which is closed for development at present, during the Tomb Sweeping Day holiday. The 3,600-meter-high mountain is known for having the biggest sightseeing stand in China, with a perfect panoramic view of mountains on all sides. (Photo/CFP)
