Which city does Longkou City belong to?

Longkou is a county-level city under the jurisdiction of Yantai City. It borders Penglai City to the east, Qixia City and Zhaoyuan City to the south, Bohai Sea to the west and north, and Tianjin and Dalian across the sea. The maximum horizontal distance from east to west is 46.08 kilometers, the maximum vertical distance from north to south is 37.43 kilometers, and the total area is 901 square kilometers. Longkou City is located in the northern part of the low mountains and hills of Jiaodong, with high terrain in the southeast and low terrain in the northwest. The southeast is hilly and the northwest is coastal plain. The southeastern part is a low mountainous area, covering an area of ??155.62 square kilometers; the hills are mainly distributed on the northern edge of the southern low mountains, covering an area of ??281.12 square kilometers; the plain area is 454.03 square kilometers. The main rivers include Huangshui River, Yongwen River, Mapei River, Nanluan River, Longkou River, Bali River, etc. Longkou is one of the important aquatic product bases in Shandong Province, rich in sea cucumbers, croakers, prawns, scallops, pomfret, etc. There are 19 historical places of interest and 4 revolutionary memorial sites. Among them, the ruins of the capital city of Lai are provincial-level cultural relics protection units and are considered city sites. The main attractions include Qidao, Nanshan Scenic Area, Xugong Temple, Shiding Former Residence, Wangwu Reservoir Scenic Area, Jiye Sightseeing Agriculture, etc.