【Tokachi Horokayanto Pit Group】
Near Horokayanto, there are some remains of pit dwellings that were built approximately 1,000 years ago during the Satsumon culture.
These were large aboriginal dwellings on the 15-meter-high Bansei coastal terrace facing the Pacific Ocean. Its length was approximately 2 km from north to south, and there are approximately 130 of them in the surrounding area.
Today, only a pit about 5m in length and 50cm to 1m in depth remains, but a reconstructed dwelling is also on display.
The site is a valuable site for the study of the Satsumon culture, because Satsumon-style earthenware, metalware, and animal skeletons have been unearthed.
The site was designated as a Hokkaido cultural property on July 7, 1966.