The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With 8,472 square miles (21,940 km2) and a population of more than 2.2 million people, it is the second-largest metropolitan area centered in Missouri (after Greater St. Louis) and is the largest metropolitan area in Kansas, though Wichita is the largest metropolitan area centered in Kansas. Alongside Kansas City, Missouri, these are the suburbs with populations above 100,000: Overland Park, Kansas; Kansas City, Kansas; Olathe, Kansas; Independence, Missouri; and Lee's Summit, Missouri.
Ganquan County belongs to the hilly and gully zone of the Loess Plateau in northern Shaanxi Province, which is located in the middle of Yan'an City, Shaanxi Province, with a semi-humid inland monsoon climate. The total area is 2284.7 square kilometers, the total area of cultivated land in the county is 609000 mu, and the forest and grass coverage rate is 78.4%, of which the forest coverage rate is 50.5%. Ganquan gets its name because of the spring water in the foothills of Shenlin, 5 kilometers southwest of the city, which is known as "the hometown of beautiful water". There is a history of the Western Zhou Dynasty, Qin home Diaoyin County, Northern Wei early home Linzhen County, Tang Wude first year home Fulu County, Tianbao first year changed to Ganquan County. Places of interest include the site of Qin Zhidao, the "Meishui Spring" given by Emperor Yang of the Sui Dynasty, the White Deer Temple built in the Tang Dynasty, the Millennium Ginkgo Tree, the ancient tombs of the Song Dynasty, and so on. In March 2019, it was listed as the first batch of revolutionary cultural relics protection and utilization district and county list.