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Tulsa (/ˈtʌlsə/) is the second-largest city in the state of Oklahoma and 47th-most populous city in the United States. The population was 413,066 as of the 2020 census. It is the principal municipality of the Tulsa Metropolitan Area, a region with 1,023,988 residents. The city serves as the county seat of Tulsa County, the most densely populated county in Oklahoma, with urban development extending into Osage, Rogers, and Wagoner counties.

Tulsa was settled between 1828 and 1836 by the Lochapoka Band of Creek Native American tribe and most of Tulsa is still part of the territory of the Muscogee (Creek) Nation.[a]

Historically, a robust energy sector fueled Tulsa's economy; however, today the city has diversified and leading sectors include finance, aviation, telecommunications and technology. Two institutions of higher education within the city have sports teams at the NCAA Division I level: Oral Roberts University and the University of Tulsa. As well, the University of Oklahoma has a secondary campus at the Tulsa Schusterman Center, and Oklahoma State University has a secondary campus located in downtown Tulsa. For most of the 20th century, the city held the nickname "Oil Capital of the World" and played a major role as one of the most important hubs for the American oil industry.

Longxian, which belongs to Baoji City, Shaanxi Province, is called Longzhou in ancient times, because it is located in Dongzaka, Longshan. It is located in the west of Guanzhong Plain and northwest of Baoji City. It faces Qianyang to the east, Chencang District to the south and Qingshui, Zhangjiachuan, Huating, Chongxin and Lingtai five counties in the northwest. It is between longitude 106o 26mm 32 "- 107o 811" east and latitude 34o 35m 17 "- 35o 6m 45" N, with a width of 57.6km from north to south and 59.7km from east to west, with a total area of 2285 square kilometers. Longxian is called Longzhou in ancient times, because it is located on the east slope of Longshan. Qin Xianggong established the capital, and Longguan was established in the Han Dynasty, which is known as "the capital of Qin and Han pass". It is the first male pass on the ancient Silk Road to the west of Chang'an. Longxian County has a good ecology, with 60% forest coverage and 49 large and small rivers, which is known as the "faucet of Guanzhong".
Travel Guides In Longxian County
Travel Notes In Longxian County