Iitoi

…It is located in the hills in the northern part of the Abukuma Highlands, and occupies the upper reaches of the Mano River and the Nitta River. In the early modern period, it was called Yamanakago, the territory of the Soma Domain, and the domain's jinya was located in Iihi. The current central settlement, Kusano, is a key transportation point connecting the Hamadori and Nakadori regions, and in the early modern period, it was a bustling area with a wholesaler's office for the collection and distribution of goods and the transfer of people and horses. …

*Some of the terminology explanations that mention "Iihi" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…阿武隈高地北部の丘陵地にあり，真野川，新田川の上流域を占める。近世は相馬藩領山中郷と呼ばれ，飯樋には藩の陣屋が置かれた。現在の中心集落草野は浜通りと中通りを結ぶ交通の要地にあり，近世には問屋場が置かれ，物資の集散，人馬の継立てでにぎわった。…

※「飯樋」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