2. Wuhan Metropolitan Area is an urban agglomeration with Wuhan, the largest city in Central China, as the central city and Huangshi as the sub-center, covering eight surrounding large and medium-sized cities such as Ezhou, Huanggang, Xiaogan, Xianning, Xiantao, Qianjiang and Tianmen. The area of Wuhan metropolitan area is less than one third of that of Hubei Province, and it is one of the largest urban agglomerations in Central China. Also known as "1+8" city circle.