Dengzhou, formerly Deng County, is a county-level city in Nanyang, Henan, China. It has an area of 2,294 km2 (886 sq mi) and a population of 1,500,000. The urban area is 35 km2, and the urban population is 300,000. The city is located in the southwest of Henan province and adjacent to Henan's border with Hubei and Shaanxi provinces. It geometrically lies in the center of the triangle of Zhengzhou,…