Los Angeles (US: /lɔːs ˈændʒələs/ (listen) lawss AN-jəl-əs;[a] Spanish: Los Ángeles [los ˈaŋxeles], lit. 'The Angels'), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world's most populous megacities. Los Angeles is the commercial, financial, and cultural center of Southern California. With a population of roughly 3.9 million residents within the city limits as of 2020, Los Angeles is known for its Mediterranean climate, ethnic and cultural diversity, being the home of the Hollywood film industry, and its sprawling metropolitan area. The city of Los Angeles lies in a basin in Southern California adjacent to the Pacific Ocean in the west and extending through the Santa Monica Mountains and north into the San Fernando Valley, with the city bordering the San Gabriel Valley to its east. It covers about 469 square miles (1,210 km2), and is the county seat of Los Angeles County, which is the most populous county in the United States with an estimated 9.86 million residents as of 2022.
Jianchang County, which belongs to Huludao City, Liaoning Province, is located in the northwest of Huludao City. It is bordered by Lianshan District and Xingcheng City in the east, Suizhong County in the south, Lingyuan City in the northwest, Azure Dragon Manchu Autonomous County and Haigang District in Qinhuangdao City, Hebei Province in the southwest, and Kazuo and Chaoyang counties in the north. Jianchang County has a total land area of 3181 square kilometers. Cultivated land is 890000 mu. The population of Jianchang County is 650000 (2011). There are Han, Manchu, Mongolian, Hui, Korean and other ethnic groups. Jianchang County is located in the hilly and mountainous areas of western Liaoning, where the Yanshan Mountains extend. The terrain is high in the northwest and low in the southeast. The Songling Mountains run northeast and southwest, running through the county. Daqingshan, the highest peak, is 1223 meters above sea level and is famous for its roofs in western Liaoning. There are more than 40 rivers that originate and flow through the county, and the main rivers are Daling River, Liugu River, Qinglong River and Heishui River. Within the territory, there are large,