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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.

"Delinha" means "Golden World" in Mongolian. Delingha City, founded in 1988, is the capital of Haixi Mongolian-Tibetan Autonomous Prefecture of Qinghai Province. It is the center of politics, education, science and technology, and culture of the whole prefecture. It is also the center of the eastern economic zone of Hercynian. Delingha City has jurisdiction over three streets, three towns and one township with a total area of 27700 square kilometers, with an elevation of 2980 meters above sea level in the urban area. by 2012, it has a population of nearly 100000. There are 19 ethnic groups, including Mongolia, Tibet, Hui, Sala, Tu and Han, with Mongolians as the main ethnic minorities. There are 16 kinds of mineral resources and 65 mineral deposits found in Delingha City, of which the proven limestone reserves are more than 700 million tons, which is of high utilization value. Gahai Lake, 30 kilometers south of the city, is rich in natural Artemia resources. two
Travel Notes In Delhi city
August 2018 Qinghai trip (2)
On the second day of the trip to Qinghai (12th), today's destination is Delingha, where we will stay at Haixi Hotel in Delingha. The journey is about
I'm in Delingha tonight
At first, I didn’t think about going to Delingha. Later, because of the holiday, I decided to go to Delingha because the nearest city to go to Tibet i
Dachaidan and Delingha in Haixi - 2020 Autumn Tibet, Xinjiang and Qinghai Self-driving Travel Notes (17)
Dachaidan is located in the northwest of Qinghai Province, on the northern edge of the Qaidam Basin, and is the "Northern Gate" of the Qaidam Basin. T
Self-driving in Haixi, Qinghai, meeting the most beautiful Emerald Lake
Goodbye Qinghai, it is amazing I have been to Qinghai twice, and I am used to the altitude of Qinghai, but when the third time came, I still drank rho