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.
Gangcha County is under the jurisdiction of Haibei Tibetan Autonomous Prefecture of Qinghai Province, one of the key animal husbandry counties around the lake, located in the west of the state, the north bank of Qinghai Lake. The county government is stationed in Saliuhe Town, 110 kilometers away from Xihai Town, Haiyan County, where the state capital is located. By 2012, the total population of the county was 42000, of which ethnic minorities accounted for 72.5%, Tibetans accounted for 63.38%, as well as Han, Mongolian, Hui, Dongxiang and other ethnic groups. The area is 12000 square kilometers. Jurisdiction over 3 townships, 2 towns and 1 game. It was called Qiang Land in ancient times. The main rivers in Gangcha County are the Moeller River, the Kexai River, the Jiangcang River, the Shaliu River, the Bahaulan River, the Buha River, the Halgai River and the Gilmont River. It belongs to the continental climate of the plateau, with an average annual temperature of-0.6 ℃ and annual precipitation of 370mm. The main mineral deposits are coal, iron, copper, silver, uranium and so on. Pure animal husbandry county, herding Tibetan sheep