High Quality Content by WIKIPEDIA articles! The Yangtze River Delta, Yangtze Delta or YRD, also called Yangzi Jiang Delta, Chang Jiang Delta, River Chang Delta, Tai Lake Region or the Golden Triangle of the Yangtze, generally comprises the triangular-shaped territory of Wu-speaking Shanghai, southern Jiangsu province and northern Zhejiang province of China. The area lies at the heart of the region traditionally called Jiangnan (literally, "south of the Yangtze River"). The Yangtze River drains into the East China Sea. The urban build-up in the area has given rise what may be the largest concentration of adjacent metropolitan areas in the world. It covers an area of 99600 km2 and is home to over 105 million people as of 2010, of which an estimated 80 million is urban.