• San Francisco
  • Jinchang

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.

Jinchang, a prefecture-level city under the jurisdiction of Gansu Province, is high in the south and low in the north, with mountains crisscross with flat rivers and Gobi oases, with a continental temperate arid climate, sufficient light and dry climate; it has jurisdiction over Jinchuan District and Yongchang County, with a total area of 9593 square kilometers; and the resident population is 469200 in 2017. Jinchang, located in the middle of Hexi Corridor, is an important node city of ancient Silk Road and one of the major cities of Hexi Corridor. Since ancient times, its natural conditions have been relatively harsh. Jinchang is one of the 110 key water-deficient cities and 13 resource-based water-deficient cities in China. It is also an area with fragile natural ecological environment in western China. Jinchang edge mining enterprise, because of the establishment of the city, because of the rich nickel is known as "the nickel capital of the motherland". In 2011, he won the title of "National Health City". In January 2014, the Ministry of Urban and Rural Construction ordered it.
Travel Notes In Jinchang