Kanakuso Field
‘Kanakuso’ refers to the slag produced during iron-making from iron sand. Any digging in this area, whether on roads or in the fields, produced a lot of slag, hence the name Kanakuso Field. The nearby slope is called Kanakuso Slope. Iron manufacturing seems to have been actively carried out in this area since ancient times.
Iron sand, a raw material for iron-making, is believed to have been extracted from the Hijikuro River, which is also known as the Iron River (Kurogane River).