Obihiro Centennial City Museum



yuk’epiracasi (Rikubetsu Town)
Aerial view of yuk’epiracasi
otahunpecasi(Urahoro Town)

Casi means “fence” in Ainu. They are sections of cliffs or hills around the ocean or rivers, surrounded by ditches or fences, and are mostly forts. They are also said to be sites where festivals or caranke (meetings) were held. It is said that they were made between the 16th and 18th centuries.