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.
Biyang County (bi yang), located in the south of Henan Province, belongs to Zhumadian City. It is named because it is located in the Yang of secreting water (the south of the mountain and the water of the north is the yang). It covers an area of 2335 square kilometers and has a population of more than 900,000. This area has a warm temperate continental monsoon climate, with an annual average temperature of 14.6 °C, an annual precipitation of 960 mm and a frost-free period of 219 days. Biyang County was established in the Western Han Dynasty, which was the original name of Bihe River. Biyang County is now Biyang County. The county has initially formed a complete industrial production system of medicine, chemical synthesis, cement, cotton spinning, food, beverage, feed processing and so on. The main local products are: Biyang mushroom, black fungus, Biyang donkey meat, two shops of beef, Magutian ladle pear, Jia Lou Baiyunxian peach, Xianghe jujube, Yangshi bun and so on. Tourist attractions are Tongshan, Baiyun Mountain and Tongshan Lake Reservoir.