- A zori mound is a pile of old straw sandals worn by people, cattle and horses (as there were no horseshoes prior to the Meiji era) to make fertilizer for secondary use of straw.
-ゾウリ塚とは稲藁の二次利用であり人、ウシ、ウマ（明治以前は蹄鉄ではなかった）の履いていた草鞋を肥料にするため集積し保存した状態。