San Diego (/ˌsæn diˈeɪɡoʊ/ SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles.
Lushan County is located in the central and western part of Henan Province, at the eastern foot of Funiu Mountain, longitude 112 degrees 14-113 degrees 14 east, latitude 33 degrees 34-34 degrees 00 north, Luoyang City in the north, Nanyang City in the south, and Pingdingshan City in the east. It is located in the transitional zone from north subtropical zone to warm temperate zone, with an average annual temperature of 14.8 ℃ and an average annual precipitation of 1000 mm. The county covers an area of 2432.32 square kilometers, with 25 townships (towns and offices) and 559 administrative villages with a total population of 927000. Zheng Yao Expressway, Taiao Expressway, National Highway 311, National Highway 207 and Provincial Highway S242, S231 run across the county. The Yaoshan-Central Plains Giant Buddha Scenic spot is a national 5A tourist scenic spot and a national key scenic spot, while the Shammei Valley Scenic spot is a national 4A tourist scenic spot with ancient buildings such as Confucian Temple and Ming Dynasty.