The Huai River is a major river in eastern China, flowing approximately 1,000 kilometers. It originates in the Huangshan mountain range and flows northward, eventually emptying into the Yellow River. The river serves as a natural boundary between northern and southern China and plays a crucial role in the region's agriculture and economy. The Huai River basin is known for its fertile land, supporting the cultivation of rice, wheat, and other crops. However, the river has faced environmental challenges, including pollution and flooding, which have impacted local communities. Efforts are ongoing to improve water quality and manage flood risks in the area.