Nanjin Pass is the end of the Three Gorges and the division of the upper reach and mid reach of the Yangtze River. It had been the key junction of military affairs because of cliffs on each side and the narrow water passage creating a bottleneck and surging waters. The main scenic spots include Three Travelers' Cave, Peach Blossom Country, and so on. Through Nanjin Pass, the width broadens from a width of 300 meters (328 yards) to over 2,000 meters (2,187 yards).