Dongying is a prefecture-level city in Shandong Province, located in the Yellow River Delta in the north of Shandong Province, where the Yellow River flows into the Bohai Sea. The geographical location of Dongying City is 36 55' ~ 3810' north latitude and18 07' ~110' east longitude. It borders Bohai Sea in the east and north, Binzhou City in the west, Zibo City and Weifang City in the south. The maximum longitudinal distance from north to south is123km, and the maximum lateral distance from east to west is 74km, with a total area of 7923km2.