About Yichuan: Yichuan is situated in the north of Shaanxi province to the southwest of Yan'an. It is home to the famous Hukou Waterfall, which is the second largest waterfall in China and the world's largest yellow waterfall. Hukou means 'teapot spout', which describes the narrow shape of the gorge. The area around the waterfalls also features a number of interesting geological features and river islands. Other popular attractions include Mengmen Mountain and Mangtou Mountain.