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Costillares, also known as Pinar de Chamartín, is a ward in north Madrid most famous for its Madrid Metro station. It is near the northern border of city limits, but still within them, so its station is located in fare Zone A.
The neighborhood has 22,616 residents. It is named for a pinar (a small forest of pine trees) near the larger district of Chamartín. The current-day neighborhood, however, is located within the district of Ciudad Lineal.
The station is the terminus for Line 1, Line 4 and the Metro Ligero line 1. As the 1 is one of the most important lines in all of Madrid, the 4 serves the local area of Hortaleza, and the ML1 serves the nearby Cercanías station in the new and expanding neighborhood of Sanchinarro, this station sees a high amount of traffic for being in a relatively low-population neighborhood far removed from the city center.