Chūbu

Chūbu, literally "the central part", fills the widest section of Honshu between Tokyo and Osaka. It reaches from the Sea of Japan to the Pacific and includes the highest and most rugged terrain in Japan: the three ranges of the Japanese Alps, the volcanic peaks of Ontake, Norikura and Asama, and Mount Fuji itself on the border of Yamanashi and Shizuoka.

Because mountains divide it, Chūbu is less a single region than three. Hokuriku, along the Sea of Japan, is a land of heavy snow, rice, fishing ports and old castle towns such as Kanazawa. The inland Kōshin'etsu area of Yamanashi and Nagano is a world of basins and highland plateaus, orchards and ski resorts. Tōkai, on the Pacific side, is one of the country's great industrial belts, with Nagoya at its centre and the Toyota group, musical instruments, motorcycles and tea as famous products.

The region's historic highways, the Tōkaidō along the coast and the Nakasendō through the mountains, linked Edo and Kyoto, and many of the post towns along them survive. Chūbu is also the home ground of the three unifiers of sixteenth-century Japan: Oda Nobunaga, Toyotomi Hideyoshi and Tokugawa Ieyasu all came from present-day Aichi.

The core of Chūbu is the Central Highland. The Hida Mountains (Northern Alps), Kiso Mountains (Central Alps) and Akaishi Mountains (Southern Alps) run roughly north to south with many summits above 3,000 metres, including Kita-dake and Okuhotaka-dake, the second and third highest peaks in Japan. Between them lie the Fossa Magna, a great rift across Honshu, and the Itoigawa-Shizuoka Tectonic Line, which geologists treat as the boundary between north-eastern and south-western Japan.

Long rivers drain the mountains in both directions: the Shinano to the Sea of Japan, and the Tenryū, Fuji, Ōi and the three Kiso rivers (Kiso, Nagara and Ibi) to the Pacific. The largest lowlands are the Echigo Plain in Niigata, the Toyama and Kanazawa plains and the Nōbi Plain around Nagoya. The coasts include the Noto Peninsula jutting into the Sea of Japan, the deep Toyama Bay, the Izu Peninsula and Suruga Bay, the deepest bay in Japan.

The mountains create sharp climatic contrasts. Hokuriku has a Sea of Japan climate with long cloudy winters and some of the heaviest snowfall in the world, especially in the mountains of Niigata, Toyama and Gifu. The inland basins of Nagano and Yamanashi are dry, sunny and markedly continental, with cold winters and hot summer days. The Tōkai coast has a Pacific climate with mild, sunny winters and humid summers; the Izu Peninsula and western Shizuoka rarely see snow.

Chūbu lay between the ancient capitals in the Kinai and the frontier to the east. In the Sengoku period its provinces were the base of famous warlords: Takeda Shingen in Kai, Uesugi Kenshin in Echigo, and the Imagawa in Suruga, while Owari and Mikawa produced Nobunaga, Hideyoshi and Ieyasu. The decisive Battle of Sekigahara in 1600 was fought in present-day Gifu.

Under the Tokugawa, Owari was held by one of the three senior branch families of the shogun's house, and the Maeda of Kaga, based in Kanazawa, ruled the richest domain in Japan. In the Meiji era Nagano and Yamanashi became centres of silk reeling, and the Tōkai coast developed textile and later automotive industries, making the Nagoya area Japan's leading manufacturing region.

Modern transport transformed the region: the Tōkaidō Shinkansen opened in 1964, and the first section of the Hokuriku Shinkansen reached Nagano in 1997, ahead of the 1998 Winter Olympics; the line was extended to Kanazawa in 2015 and Tsuruga in 2024. Natural hazards remain part of its history, from the Isewan Typhoon of 1959 to the eruption of Mount Ontake in 2014 and the Noto Peninsula earthquake of 1 January 2024.

Chūbu's cultures follow its geography. Hokuriku is marked by Jōdo Shinshū Buddhism, which took deep root here from the fifteenth century, and by the refined crafts that the Maeda lords fostered in Kanazawa: gold leaf, Kutani porcelain, Wajima lacquer and Kaga yūzen silk dyeing. The mountain villages preserved distinctive architecture such as the gasshō-zukuri farmhouses of Shirakawa-gō and Gokayama.

In the highlands, mountain worship centred on Fuji, Ontake and Tateyama shaped religious life, and the Onbashira festival of Suwa is one of Japan's most dramatic rituals. On the Tōkai side, the culture of Nagoya is known for its castle, its distinctive food and a reputation for thrift and practicality, while Seto and Tokoname in Aichi and Mino in Gifu are among the oldest pottery centres in Japan.