Otsuboyama Kōgoishi
おつぼ山城
Explore ancient mountain castle ruins with unique stone structures and artifacts.
What it is
- An ancient mountain castle, designated a National Historic Site.
- Existence of structures reported in 1962.
- Designated a National Historic Site in 1966.
What to see
- Earthworks, sluices, and gates unearthed during excavations.
- Stone rows are 1866 meters long, 1280 meters remain.
- Cut stones are made of andesite.
- First sluice is in the southeast corner.
- Jomon pottery, stoneware, and Sue ware found at first sluice.
- East gate is a 3-meter gap in the stone rows.
Notes written by Japan Gems from facts in Japanese Wikipedia.
Where it is
Otsuboyama Kōgoishi Open in Google Maps
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