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.
Longling County is located in the west of Yunnan Province, with geographical coordinates of 98 °25 "99 °11" east longitude and 24 °07 "24 °50 'north latitude. It is bordered by Shidian, Yongde, Zhenkang, Myanmar, Luxi, Lianghe, Tengchong and Longyang respectively. The maximum distance between east and west of the county is 64 kilometers, and the maximum span between north and south is 78 kilometers, with a total area of 2884 square kilometers. The county has jurisdiction over 5 towns and 5 townships (including 1 ethnic township). Longling is located in the Nujiang fault zone, with many earthquakes and geothermal. Belongs to the subtropical mountain monsoon climate, the three-dimensional climate is obvious, the annual precipitation is about 2300 mm, it is called "the rain screen of western Yunnan". Places of interest include Xiao Heishan Nature Reserve, Banglazhang Hot Mineral Spring, Songshan Battle site, Dam Martyrs Cemetery, Xishan Park, Yunlong Temple, etc., as well as Hetou Shaotan Tianpo, etc.