• Tulsa
  • Qin'an County

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.

Qin'an County, which belongs to Tianshui City, Gansu Province, is located in the southeast of Gansu Province, the north of Tianshui City, and the lower reaches of Hulu River, a tributary of Weihe River; the center is located at 34 °51 °N and 105 °40 °E, with a total area of 1601 square kilometers. As of 2015, Qinan County has jurisdiction over 12 towns and 5 townships. The total population is 618000 (2012). In 2015, the GDP of Qin'an County reached 5.26 billion yuan. Qinan County belongs to the temperate semi-humid climate in the south of Longzhong, with an annual average temperature of 10.4 ℃ and a normal annual precipitation of 507.3 mm. Qin'an County is one of the eighteen arid counties in Gansu Province, which belongs to the Liangfeng gully region in the west of Longzhong Loess Plateau with many mountains and few rivers. By 2015, Yangshao, Majiayao, Qijia Culture and other Neolithic cultural sites have been found in Qin'an County.
Travel Guides In Qin'an County
Travel Sights In Qin'an County
Travel Notes In Qin'an County
Travel Asks In Qin'an County
Travel Asks In Qin'an County