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Sannai-Maruyama Site
調査・執筆 Hinato
Photo: z tanuki / Wikimedia Commons (CC BY 3.0) · original
Sannai-Maruyama (三内丸山遺跡) is Japan's largest and most significant Jomon-period archaeological site, preserving a settlement inhabited from approximately 3,900-2,300 BCE. The site reveals that Jomon people (Japan's prehistoric hunter-gatherer culture) lived in large, organized villages centuries before agriculture arrived. Excavations have uncovered over 1,700 pit dwellings, storage buildings, graves, pottery kilns, and discarded artifacts including jade ornaments, lacquerware, and advanced pottery.
The most striking features are the reconstructed structures: six massive chestnut-wood pillars (each 1m diameter) forming a 14-meter-tall tower whose purpose remains debated (observation tower? ritual structure?), and several pit houses and elevated storehouses built using techniques verified by archaeological evidence. The reconstructions allow visitors to walk through and experience the scale of Jomon architecture.
The site museum displays thousands of excavated artifacts including intricately decorated Jomon pottery (flame-style vessels with rippling rims), stone tools, clay figurines (dogū), and evidence of long-distance trade networks (jade from Niigata, obsidian from Hokkaido). The sophistication of Jomon culture — once dismissed as primitive — is now recognized as one of the world's earliest complex societies. In 2021, Sannai-Maruyama was designated a UNESCO World Heritage Site as part of 'Jomon Prehistoric Sites in Northern Japan.'
基本情報
営業時間
9:00 AM – 5:00 PM (year-round)
定休日: Closed December 30–January 1
料金
Outdoor archaeological site/park: free | Museum/exhibition facility (Sanmaru Museum): ¥410-500 adults, free for junior high and under | English audio guide available
ベストシーズン
Year-round (indoor museum + outdoor reconstructed village)
滞在目安
1.5-2 hours
アクセス
アクセス情報
インサイダーガイド
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