North China, also known simply as Huabei, is one of China's geographical regions. It extends north to the China-Mongolia border, south to the Qinling Mountains and Huai River, east to the Bohai Sea and Yellow Sea, and west to the Qinghai-Tibet Plateau. It includes Beijing, Tianjin, Hebei, Shanxi, and the Inner Mongolia Autonomous Region, and is a major political, economic, and cultural center as well as an important grain-producing region.