山やま口ぐち県けんやまぐちけんMeanings1nounYamaguchi PrefectureA prefecture in the Chūgoku region of western Honshu, Japan.山やま口ぐち県けんは本ほん州しゅうの西せい端たんにあります。Yamaguchi Prefecture is at the western end of Honshu.
