Mount Iwai

...In the prefectures of Chiba, Shizuoka, and Aichi, these are called kuseki-chi, but in the case of mountains and rice fields, they are called kuseki-yama and kuseki-da. Land with the same characteristics can be found all over the country, and is known by such names as tatari-chi, noroi-chi, toshi-yama, bachi-yama, irazu-yama, iwai-yama, kisho-yama, yamaida, kechi-da, buku-da, yan-hata, and toshi-hata. Such lands are often accompanied by legends, such as that they were the location of a Jizo or Kojin, that a Buddha statue was buried there, that they were the site of an execution ground, that there was a dispute over land boundaries, or that someone died on the road....

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…千葉，静岡，愛知の諸県でこれを癖地というが，山や田の場合は癖山，癖田と呼ばれる。同じ性格の土地は全国各地に見られ，タタリ地，ノロイ地，トシ山，バチ山，イラズ山，イワイ山，キショウ山，ヤマイ田，ケチ田，ブク田，ヤン畑，トシ畑などの名称が知られている。こうした土地には，地蔵や荒神があった所だとか，仏像が埋まっていた，刑場があった，土地の境界争いがあった，行路死人があった所だなどという伝承が伴っていることが多い。…

※「イワイ山」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