[1] It is notable as the site where members of the Byakkotai (White Tiger Corps) committed ritual suicide in 1868, during the Boshin War.

After the surrender of Japan at the end of World War II, members of the Occupation, specifically of the U.S. Army, replaced the swastika on the German monument with an iron cross.

[5][6] Iimori Mountain has been heavily commercialized and the site includes many souvenir shops and exhibitions.

[4] Downhill from Iimori Mountain stands Sazae-dō (さざえ堂), a hexagonal wooden pagoda built in the 18th century, which formerly sealed 33 statues of a Buddhist goddess.

[5] Another shrine at the site is Uga-shindō (宇賀神堂), near Sazae-dō, which was built during the late 17th century and deifies a white snake as a god of abundance and fertility.