Hiraide ruins, Archaeological site in Sōga, Japan
The Hiraide ruins spread across one kilometer east-west and 300 meters north-south along the Shibukawa River in the Matsumoto Plain region.
The settlement remained active from 5000 BCE through the Heian period, featuring 290 building ruins and three kofun burial mounds from different epochs.
Excavations revealed 20,000 artifacts including decorated Jomon pottery, iron tools, clay figurines, and standing stones that reflect ancient Japanese practices.
The 56,450-square-meter archaeological park contains the Shiojiri City Hiraide Museum and multiple reconstructed structures for visitors to explore.
A two-meter tower of roof tiles from the Nara period stands among 128 house foundations, many containing multiple hearths from the Kofun period.
Location: Sōga
Website: https://hiraide.shiojiri.com/remains
GPS coordinates: 36.10359,137.94209
Latest update: April 11, 2025 20:35
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