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Matsumoto (松本市, Matsumoto-shi^?) is a city located in Nagano Prefecture, Japan. Matsumoto is designated as a Special City.

Matsumoto Castle (松本城, Matsumoto-jō^?), also known as the "Crow Castle" (烏城, Karasu-jo^?) because of its black exterior, is one of Japan's premier historic castles. It is located in the city of Matsumoto, in Nagano Prefecture and is within easy reach of Tokyo by road or rail.

The keep (tenshukaku), which was completed in the late 16th century, maintains its original wooden interiors and external stonework. It is listed as a National Treasure of Japan.

Matsumoto Castle is a flatland castle (hirajiro) because it is not built on a hilltop or amid rivers, but on a plain. Its complete defences would have included an extensive system of inter-connecting walls, moats and gatehouses.