Japan

Ōtoriiyama ruins

Heian-period jōsaku fortification, Tōhoku Japan

Location

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Historical Context

About

The Ōtoriiyama ruins (大鳥井山遺跡, Ōtoriiyama iseki) is an archaeological site containing a large Heian period jōsaku-style fortification located in what is now part of the city of Yokote, Akita in the Tōhoku region of Japan. The site was designated a National Historic Site of Japan in 2010.

Paleolithic
Mesolithic
Neolithic
Chalcolithic
Bronze Age
Iron Age
Classical Period
Post-Classical Period
Early Modern Period
Industrial Period
Contemporary Period
Temporal Epochs

Historical Timeline

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Fortification construction

second half of the 10th century to the second half of the 11th century

Shinto shrine built

1679–1680

Excavations

1977–1983

National Historic Site designation

2010

Classification

Archaeological Features

Unique architectural and cultural elements found at this historical site

category

Defensive Structures

CastlesDefensive WallsMoatsDitchesBarricades
category

Military Installations

Barracks
category

Public and Civic Structures

Administrative Buildings
category

Domestic and Habitation Structures

Pit Houses
category

Transportation and Communication Structures

Bridges
Knowledge Base

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Reference

Details

Country

Japan

Coordinates

39.33° N, 140.56° E