At the foot of the Tianshan Mountains in Zhaosu, Xinjiang, the Aheyazi River and the Tekesi River converge. The Aheyazi River flows down from the Tianshan glaciers, its water a clear, vivid turquoise that reveals the riverbed below. The Tekesi River flows in from across the grasslands, carrying silt and giving its water a muted gray hue. After the two rivers meet, their boundary remains sharply defined for a long stretch: one clear, the other turbid, flowing side by side. Together, they continue through the river valley, their colors gradually bleeding into and intertwining with each other until at last they merge into a single current and flow into the distance.