Min River

…irrigation systems, watered by the Min River. The system and nearby Mount Qingcheng, an early center of Daoism, were collectively designated a UNESCO World Heritage site in 2000. The irrigation system, first set up during the Qin dynasty (221–207 bce), diverted half the waters of the Min River eastward to…

are the Jialing and Min river systems in the north. The distribution of these veins is primarily concentrated in the upper, or northern, half of the leaf.