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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.

Chengduo County, which belongs to Yushu Tibetan Autonomous Prefecture of Qinghai Province, is located in the central part of Qinghai Province. It borders Qumalai County in the north and west, Shiqu County in Sichuan Province in the southeast, and Tongtian River in the southwest and Yushu County. It is 160km wide from east to west and more than 209km from north to south, with an average elevation of 4500 meters. The total land area is 15300 square kilometers and the total population is 63000 (2013). There are Wenbao, Labu, Kana, Huema, Baimaima, Ani and other ethnic minorities. There are Gazang Temple, Sehang Temple, Labu Temple, Seba Temple and other tourist attractions in Chengduo County. In 2013, the GDP of many counties reached 1.27 billion yuan, an increase of 8.1% over the same period in 2012. On May 15, 2019, the people's Government of Qinghai Province approved the withdrawal of Chengduo counties from the poverty-stricken counties.
Travel Guides In Chengduo County
Travel Notes In Chengduo County
2021 Autumn Travel Notes on the Qinghai-Tibet Plateau (6) - Gaduojuewo
Gaduo Juewo Sacred Mountain is known as the Four Great Sacred Mountains of Tibetan Buddhism together with Gang Rinpoche in Tibet, Meili Snow Mountain
Travel Asks In Chengduo County
Travel Asks In Chengduo County