1. There are 1 county heads in guanxian, namely Zhang Zhigang and guanxian. They are located in the westernmost part of Shandong Province, bordering Dongchangfu District of Liaocheng City in the east, Linqing City in the north, Shenxian County in the south and Guantao County of Hebei Province in the west. The Yellow River Plain, located in the northwest of Shandong Province, is a part of the North China Plain with four distinct seasons. Total area 1 16 1 km2.