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San Francisco (/ˌsæn frənˈsɪskoʊ/; Spanish for "Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California in the United States. The city proper is the fourth most populous in California and 17th most populous in the United States, with 815,201 residents as of 2021. It covers a land area of 46.9 square miles (121 square kilometers), at the end of the San Francisco Peninsula, making it the second most densely populated large U.S. city after New York City, and the fifth most densely populated U.S. county, behind only four of the five New York City boroughs. Among the 91 U.S. cities proper with over 250,000 residents, San Francisco was ranked first by per capita income (at $160,749) and sixth by aggregate income as of 2021. Colloquial nicknames for San Francisco include SF, San Fran, The City, Frisco, and Baghdad by the Bay.

San Francisco and the surrounding San Francisco Bay Area are a global center of economic activity and the arts and sciences, spurred by leading universities, high-tech, healthcare, FIRE, and professional services sectors. As of 2020, the metropolitan area, with 6.7 million residents, ranked 5th by GDP ($874 billion) and 2nd by GDP per capita ($131,082) across the OECD countries, ahead of global cities like Paris, London, and Singapore. San Francisco anchors the 13th most populous metropolitan statistical area in the United States with 4.6 million residents, and the fourth-largest by aggregate income and economic output, with a GDP of $669 billion in 2021. The wider San Jose–San Francisco–Oakland, CA Combined Statistical Area is the fifth most populous, with 9.5 million residents, and the third-largest by economic output, with a GDP of $1.25 trillion in 2021. In the same year, San Francisco proper had a GDP of $236.4 billion, and a GDP per capita of $289,990. San Francisco was ranked seventh in the world and third in the United States on the Global Financial Centres Index as of March 2022.

Changshun County belongs to Qiannan Buyi and Miao Autonomous Prefecture of Guizhou Province of the people's Republic of China. The county government is stationed in Changzhai Town, which is located in the south-central part of Guizhou Province and the west of Qiannan Prefecture. Changshun County has a total area of 1543 square kilometers. The county seat is 84 kilometers away from the provincial capital Guiyang, 178 kilometers from Duyun, the state capital, and 85 kilometers from Anshun City. Jurisdiction over 5 towns, 1 township, 1 street. The total population is 256600 (2015), with ethnic minorities accounting for 56% of the population, mainly Buyi and Miao. The mountains of Changshun County belong to the Miaoling mountain system, the north of the Miaoling watershed Henggen County, the topography is high in the north and low in the south, the geomorphology type is the hilly area in the north, the hilly area in the west, the middle and low karst mountains in the south, and the peak and cluster valley in the east. The rivers belong to the Yangtze River and the Pearl River. Industry has coal mining, chemical fertilizer, building materials, feed processing. Agriculture
Travel Guides In Changshun Country
Travel Notes In Changshun Country
People in Changshun rely on good mountains and rivers to "sell scenery" and eat "tourism meals"!
Beside the highway in the Shenquan Valley Scenic Area in Changshun County, the brand-new immigrant communities are particularly eye-catching. This is