Oku (place name) - Oku

...The prefecture's manufacturing shipment value was 23% for general machinery, 17% for electrical equipment, etc. (1995).
[Five regions: Kuninaka, Nishiyamanaka, Higashiyamanaka, Oku, and Nanzan]
Nara Prefecture is divided into two parts, the north and the south, by the Median Tectonic Line. Taking into consideration the differences in natural conditions, history, industry, and commercial areas, the north is further divided into four parts: Kunnaka (Nara Basin), Nishisanchu (Ikoma and Kongo Mountains), Higashisanchu (Kasagi Mountains), and Oku (Uda and Ryumon Mountains). Together with this, the south includes Nanzan (Yoshino Mountains), making a total of five regions. (1) Kunnaka: Almost the entire Nara Basin, its area only about one-tenth of the prefecture, but it has occupied a central position as the flattest area in Yamato Province since ancient times, and so it is still called Kunnaka today.

*Some of the terminology explanations that mention "Oku (place name)" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…県の製造品出荷額の割合は一般機械が23％，電気機器が17％など(1995)である。
［国中，西山中，東山中，奥，南山の5地域］
　奈良県は中央構造線を境に北部と南部に二分されるが，さらに自然条件や歴史，産業，商圏の違いも考えあわせて北部を国中（くんなか）(奈良盆地)，西山中（にしさんちゆう）(生駒･金剛山地)，東山中(笠置山地)，奥(宇陀･竜門山地)に四分し，これに南部の南山（なんざん）(吉野山地)を合わせて5地域とする。(1)国中　奈良盆地のほぼ全域にあたり，面積は県域の約1/10にすぎないが，古代以来大和国随一の平地として中心的な地位を占めてきたため，現在もこの称がある。…

※「奥（地名）」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報