Nationally designated Important Cultural Property Construction year: 1911 A dry-stone structure made of cut sandstone. The entrance is in the form of a semicircular arch. The inside width is about 3m, the inside height is about 3.5m, and the total length is 33.2m. The keystone at the top of the arch is shield-shaped. It is the first tunnel from downstream, and the letter "I" remains engraved on the cornerstone on the right side.
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| Language | 日本語 |
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Last Update ：
2024.10.23
Kochi Prefecture Eastern Tourism Council General Incorporated Association
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