Shimōsa Plateau
Immediately after World War II, the transportation system of northern Chiba Prefecture was significantly improved. The rail network connecting northern Chiba Prefecture to Tokyo was expanded, allowing the construction of large-scale housing facilities, and northern Chiba Prefecture became a bedroom community of metropolitan Tokyo. The construction of Narita International Airport between 1972 and 1978 resulted in further economic development and population increase on the central Shimōsa Plateau.