Tourists enjoy scenery of the Hukou Waterfalls along the Yanhuang Highway in Yichuan County, north China's Shaanxi Province, Sept. 3, 2017. The 828.5-kilometer-long Yanhuang Highway, which runs along the west bank of the Yellow River, is expected to play a positive role in promoting the province's local tourism and ecological conservation. At cost of 6.9 billion yuan (1 billion U.S. dollars), the highway across 12 districts and counties will benefit more than 2 million people. (Xinhua/Tao Ming)