• Fresno
  • ngapa  county (in tibetan )

Fresno (/ˈfrɛznoʊ/) is a major city in the San Joaquin Valley of California, United States. It is the county seat of Fresno County and the largest city in the greater Central Valley region. It covers about 115 square miles (300 km2) and had a population of 542,107 in 2020, making it the fifth-most populous city in California, the most populous inland city in California, and the 34th-most populous city in the nation. The Metro population of Fresno is 1,008,654 as of 2022.

Named for the abundant ash trees lining the San Joaquin River, Fresno was founded in 1872 as a railway station of the Central Pacific Railroad before it was incorporated in 1885. It has since become an economic hub of Fresno County and the San Joaquin Valley, with much of the surrounding areas in the Metropolitan Fresno region predominantly tied to large-scale agricultural production. Fresno is near the geographic center of California, approximately 220 miles (350 km) north of Los Angeles, 170 miles (270 km) south of the state capital, Sacramento, and 185 miles (300 km) southeast of San Francisco. Yosemite National Park is about 60 miles (100 km) to the north, Kings Canyon National Park 60 miles (100 km) to the east, and Sequoia National Park 75 miles (120 km) to the southeast.

Fresno is also the third-largest majority-Hispanic city in the United States; 50.5% of its population was Hispanic in 2020. Since 2010, statewide droughts in California have further strained both Fresno's and the entire Central Valley's water security.

Aba County is located on the southeast edge of the Qinghai-Tibet Plateau, at the confluence of Sichuan, Gansu and Qinghai provinces, bordering Ruoergai County, Hongyuan County, Malkang County, Rangtang County and Maqu County of Gansu Province, Jiuzhi County of Qinghai Province, and Banma County. It is an important transportation hub from the mainland to the northwest, an important trade center and material distribution center, and a county dominated by animal husbandry with both agriculture, animal husbandry and forestry. it is a typical old, small, border, poor and sick area. The topography of the county is complex, the terrain gradually inclines from northwest to southeast, the county seat is 3290 meters above sea level, the highest elevation is 5154 meters above sea level, and the lowest elevation is 2936 meters above sea level. The runoff belongs to the Yangtze River and Yellow River systems, belongs to the semi-humid monsoon climate in the cold temperate zone of the plateau, and there is no obvious difference between the four seasons, the temperature difference between day and night is large, the frost-free period is short, the solar radiation is strong, and the average annual temperature is 4 ℃. Aba County in 1951
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