Xíngyáng
Xingyang lies west of Zhengzhou, where the approaches from Luoyang meet the Yellow River plain. The region includes the old Hulao Pass and the Guangwu hills, long contested by armies moving between the east and west. Qin rulers stored grain at Aocang, while Liu Bang and Xiang Yu struggled for control of the area during the wars that founded the Han. In 1635 leaders of several anti-Ming armies gathered at Dahai Temple near Xingyang and agreed to divide their forces for campaigns in different directions.