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Kōchi Historic site

Tōjin Daba

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唐人駄場

Tōjin Daba is a mountain site with unique, large granite boulders from the prehistoric Jomon period.

Tōjin Daba
Dokudami CC BY-SA 4.0 resized via Wikimedia Commons

What it is

  • Prehistoric Jomon period habitation site.
  • Located in the mountains near Tosashimizu.

What to see

  • Huge rocks up to 7 meters tall, called tojin-ishi.
  • Granite boulders formed from hardened magma.
  • Solid rocks, devoid of cracks.

In detail

The Tojin Daba site is located in the mountains about 10 kilometers from central Tosashimizu. Now covered with lush greenery, Tojin Daba was inhabited during the prehistoric Jomon period (10,000–300 BCE). The site is dotted with huge rocks up to 7 meters tall called tojin-ishi. These granite boulders were formed when magma hardened deep underground, and were eventually thrown up to the surface by tectonic activity. The tojin-ishi are solid and devoid of cracks, unlike most other granite rocks, which tend to fall apart when rain and groundwater seep into them over long periods of time.

Text: 観光庁 地域観光資源の多言語解説文データベース. Reproduced unchanged. The notes above were written from that text by Japan Gems.

Where it is

Tōjin Daba Open in Google Maps

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