Introduction to Heihe Source: Heihe Source Scenic Area covers an area of 2688.3 hectares and is named after the Heihe Source sign. The Heihe River is the main source of drinking water in Beijing. It has many springs at its source and is crystal clear. There are landscapes such as the Yulin Corridor, natural larch, Black Dragon Mountain, and Goddess Peak in the area. There are 50 hectares of natural larch forest distributed in the area.