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.
Yantan District belongs to Zigong City, Sichuan Province, named after the district government stationed in Yantan Town. It was founded in 1953 and is located at the south gate of Zigong City. It is the hometown of martyr Lu Deming, commander of the Autumn Harvest uprising, and is one of the four municipal districts of Zigong City, the salt capital of the millennium. 12 kilometers away from Zigong City. The north is bordered by Da'an District, covering an area of 467.99k. The outline of the area is full of triangles, the landform is mainly hilly, the terrain is high in the northwest and low in the southeast, with an average elevation of 300 li 400 meters. Belongs to the gentle slope low hill, the gentle slope middle hill landform type, does not have the shape mountain range, suitable for ploughing area is large. At the end of 2011, the area of cultivated land along the beach was 258700 mu, including 163100 mu of paddy field, 95700 mu of dry land and 0.77 mu of per capita arable land.