Madrid, comunidad autónoma (self-governing network) of focal Spain, coextensive with the provincia (territory) of a similar name. It is limited by the self-governing networks of Castile-León toward the north and west and Castile–La Mancha toward the east and south. The self-governing network of Madrid was built up by the rule of self-sufficiency of Feb. 25, 1983. The capital is the city of Madrid. Territory 3,097 square miles (8,022 square km). Pop. (2007 est.) 6,081,689.The Madrid self-sufficient network generally concurs with the seepage of the Jarama, Henares, and Manzanares waterways off the southern inclines of the Sierra de Guadarrama. On the dreary Meseta Central the territory is an uncovered, regularly Castilian scene of yellow soils and open oat fields; it was the area of a few conclusive fights during the Spanish Civil War (1936–39). Pine woods, protected on the mountain slants, draw in another style of summer the suburbs for occupants of Madrid city (the commonplace and national capital) and give ski offices in the winter. Just along the Henares and Jarama do watered grounds give strips of green, serious cultivation; on the edges of Greater Madrid are poultry and pig ranches blended with the improvement of estates or production lines along the primary thruways. Blessed by the gods with building materials, the area has rock quarries in the Guadarrama and dirts toward the south.An significant factor in transport and correspondences is the overall simple entry by means of disregards the focal mountains, prominently the Somosierra Mountain Pass (4,650 feet [1,417 metres]) toward the upper east, which is utilized by street and the Burgos railroad. The Madrid-Segovia rail course goes through Navacerrada Pass (6,100 feet [1,860 metres]). All the significant railroads meet in the locale, and a rapid train joins Madrid city to Barcelona city.