Guida
The Kiusu Circular Mounds are a massive archaeological site located in Chitose City, Hokkaido, dating back to the late Jomon period (approximately 3,200 years ago). The site is characterized by a unique structure known as 'Shuteibo' (circular mound burials), where large circular depressions in the ground are surrounded by raised earthen embankments. This site is one of the most significant in Japan due to the concentration of these massive mounds. It was designated as a National Historic Site in 1979 and was later inscribed as part of the 'Jomon Prehistoric Sites in Northern Japan' UNESCO World Heritage site in 2021. The sight of these massive earthen structures carved into the natural landscape provides a profound connection to the lives and spiritual beliefs of the people of that era.
The name 'Kiusu' is believed to derive from the Ainu word 'Ki-ushi,' meaning 'a place with plenty of kaye (miscanthus grass),' suggesting that the area was once a vast wetland. While these structures were once thought to be 'Chashi' (fortifications), modern archaeological research has clearly identified them as collective burial sites from the late Jomon period. The construction of these mounds required immense communal effort and reflects the social organization and respect for the deceased within the community.
The scale and structure of the mounds are truly breathtaking. For instance, Mound No. 1 has an outer diameter of approximately 83 meters, making it one of the largest Jomon-era burial structures ever discovered. Mound No. 2 features an embankment height of about 5 meters, with an estimated 3,400 cubic meters of earth moved to create it. The sheer scale suggests a highly organized and cohesive society. Visitors can also observe artifacts such as stone rods (sekibo), stone pillars used as grave markers, and decorated pottery and stone tools, all of which offer deep insights into the spiritual and material culture of the time.
The site is nestled in a natural environment that changes beautifully with the seasons. Observing the landscape during different seasonal transitions can help you visualize the ancient environment. The site is generally open from 9:00 AM to 5:00 PM. We recommend visiting during daylight hours to clearly observe the subtle undulations of the earthworks and the intricate details of the terrain. Please note that ground conditions may vary depending on the weather.
Visitors can walk along well-maintained paths and viewing decks to experience the massive scale of the mounds up close. Walking through the site allows you to grasp the physical reality of how these ancient people shaped their environment—a sensation that photos and textbooks cannot fully convey. Observing the placement of stone pillars and the shapes of excavated pottery provides a hands-on way to learn about advanced Jomon-period technology and culture.
Near the site, the 'Chitose City Buried Cultural Properties Center' offers a deeper look into the history. Here, you can see actual artifacts such as pottery, stone tools, and stone rods excavated from the Kiusu site. This center is an excellent place to satisfy your curiosity after exploring the actual mounds. The surrounding landscape, which still retains traces of ancient wetlands, provides a beautiful fusion of nature and history.
As the site is located in a natural setting, please wear comfortable walking shoes. While there are maintained paths, you will be walking outdoors. To protect the precious archaeological remains, strictly avoid stepping off the designated paths or touching the earthen structures. Photography is permitted for enjoying the scenery, but please be respectful of the site's sanctity. For any specific facility fees or details, please check the official local information.