
People visit the Hukou Waterfall of the Yellow River on the border area between north China's Shanxi and northwest China's Shaanxi provinces, Sept. 5, 2017. (Xinhua/Wang Xin)
People visit the Hukou Waterfall of the Yellow River on the border area between north China's Shanxi and northwest China's Shaanxi provinces, Sept. 5, 2017. (Xinhua/Wang Xin)