| Location | Lake Toya Town, Hokkaido |
| Age of the Ruins | Approximately 1,800 B.C. (Historical Site Age: Approximately 3,500 B.C. to Approximately 800 B.C.) |
| Designated Historical Site | May 13, 1988 |
Archaeological Site Information
| Location | Irie, Toyako-cho, Abuta-gun, Hokkaido 049-5603, Japan |
| Guided Tours | Available *Advance reservation required (Contact: Irie Takasago Museum) |
| Visiting Hours | Opening hours of the Shell Layer Exhibition Facility: 9:00 AM to 5:00 PM |
| Parking | None |
Access to the Archaeological Site
From Toyako Station (JR Muroran Main Line)
Approximately 15 minutes on foot
From Abuta Toyako IC (Do-O Expressway)
Approximately 10 minutes by car
From Irie Takasago Museum
Approximately 5 minutes on foot
From Takasago Burial Site
Approximately 10 minutes on foot
Visitor Information Center Details
| Name | Irie Takasago Museum |
| Address | 44 Takasago-cho, Toyako-cho, Abuta-gun, Hokkaido 049-5605, Japan |
| Phone | 0142-76-5802 |
| Official Website | https://irie-takasago.net/ |
| Parking | Available (33 regular car spaces, 7 large bus spaces, free of charge) |
| Admission Fee | Free |
| Opening Hours | 9:00 AM to 5:00 PM |
| Closed | Mondays (if it falls on a public holiday, closed on the following day), the day after a public holiday, year-end and New Year holidays (December 30th to January 5th) |
| Facilities | Participatory programs, Wi-Fi, Wheelchair rental |
Access to the Visitor Information Center
From Toyako Station (JR Muroran Main Line)
Approximately 15 minutes on foot
From Abuta Toyako IC (Do-O Expressway)
Approximately 10 minutes by car
From Irie Site
Approximately 5 minutes on foot
From Takasago Burial Site
Approximately 10 minutes on foot