Okuno Taido

…The main official road in ancient Mutsu Province was the Tosando, which ran vertically through the province from Shimotsuke Province across the Shirakawa Barrier into Mutsu Province. The route was also called the Okudaido in the Middle Ages and was essentially unchanged. It first ran north along the Abukuma River valley, crossed Mount Atsukashi (Atsugashima) on the border between Miyagi and Fukushima Prefectures, and reached the provincial capital of Taga Castle. From there, it ran north along the eastern foot of the Ou Mountains to Hiraizumi, and then continued north along the Kitakami River to Ezo. …

*Some of the terminology that refers to "Okudaido" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…古代の陸奥国の幹線的官道は，下野国から白河関をこえて陸奥国に入り，陸奥国を縦に貫く道である(東山道)。そのコースは，中世にも〈奥大道〉などと呼ばれて，基本的に変わることなく受けつがれた。それはまず阿武隈川の谷を北上し，宮城･福島県境の厚樫（あつかし）山(阿津賀志山)をこえて国府の多賀城に達し，そこからは奥羽山脈の東麓を北上して平泉に出，北上川沿いに北進して蝦夷地に達する。…

※「奥大道」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