大别山
Macheng () is a city in northeastern Hubei province, People's Republic of China, bordering the provinces of Henan to the north and Anhui to the northeast. It is a county-level city under the administration of Huanggang City and abuts the south side of the Dabie Mountains. The city's administrative area covers about , and includes some 704 villages and small towns. Total population was 849,092 at the 2010 census.