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.
Wanshan District, which belongs to Tongren City, Guizhou Province, is the main urban area of Tongren City. It is dominated by karst karst landforms and belongs to the mid-subtropical monsoon humid climate. In November 2011, the State Council approved the cancellation of Tongren City at the prefecture level and the establishment of Wanshan District. It now covers an area of 842 square kilometers with a total population of 270000 and has jurisdiction over 11 townships (towns and streets). With convenient transportation, Wanshan is an important transportation hub for Sichuan and Chongqing to reach the sea from the east, Shanghai and Hangzhou to the west to Guizhou and Yunnan, Beijing and Tianjin to the south to Guiqiong, Guangzhou and Shenzhen to the north to Shaanxi and Gansu. The three expressways of Shanghai, Kunming, Hangzhou and Rui pass through the border. Hunan-Guizhou Railway, Zhu-Liu double Line and Yu-Huai double Line are surrounded by three railways, reaching Tongren Railway Station, Tongren High-speed Railway Station and Zhusha Guzhen Station in 10 minutes, and Dalong, Yuping, Xinhuang Railway Station and Shanghai-Kunming High-speed Railway Station Tongren in 30 minutes.