Tsukushi Mountains - Tsukushisanchi

Japanese: 筑紫山地 - つくしさんち

A mountain range stretching from east to west across northern Kyushu. The highest peak is Mount Sefuri (1,055m). It is a low mountain range with an average elevation of 400-900m, and is divided by faults into many mountain massifs, including the Sefuri Mountains, Chikuhi Mountains, Minawa Mountains, and Mikuni Mountains. This mountain range belongs to the inner belt of Western Japan, and is a mixture of granite, Mesozoic and Paleozoic strata, as well as Paleogene layers. Coal is buried in the Paleogene layers, and the coalfields of Chikuho, Fukuoka, Karatsu, and Sasebo are distributed there. The Nukisan mountain range in the east is a limestone mountain range, and karst topography such as Hiraodai is developed. The mountain slopes are generally steep, but there are gentle slopes at the summits, and there are many plains and basins between the various mountain ranges.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

九州の北部を東西に連なる山地。最高峰は脊振山（1055m）。平均標高 400～900mの低山性山地で，断層により脊振山地，筑肥山地，水縄山地，三郡山地など多くの山塊群に分けられる。西日本内帯に属する山地で，花崗岩，中生層，古生層に古第三紀層が交じっている。古第三紀層のなかには石炭が埋蔵され，筑豊，福岡，唐津，佐世保の諸炭田が分布。東部の貫山（ぬきさん）は石灰岩の山地で，平尾台などのカルスト地形が発達している。一般に山地斜面は急であるが，山頂部に緩傾斜面をもち，諸山地の間には多数の平野や盆地がある。

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