
Visitors view the Hukou Waterfall of the Yellow River, which is located on the border area between north China's Shanxi and northwest China's Shaanxi provinces, May 15, 2017. (Xinhua/Lyu Guiming)
Visitors view the Hukou Waterfall of the Yellow River, which is located on the border area between north China's Shanxi and northwest China's Shaanxi provinces, May 15, 2017. (Xinhua/Lyu Guiming)