Time Periods
Paleolithic
Mesolithic
Neolithic
Chalcolithic
Bronze Age
Iron Age
Classical Period
Post-Classical Period
Early Modern Period
Industrial Period
Contemporary Period
Time Periods
Paleolithic
Mesolithic
Neolithic
Chalcolithic
Bronze Age
Iron Age
Classical Period
Post-Classical Period
Early Modern Period
Industrial Period
Contemporary Period
Location
About
The Gonga Kanga ruins in Iida, Nagano, Japan, are a significant archaeological site from the late Nara to early Heian periods, serving as a government administrative complex for Ina District in Shinano Province. Spanning from the 7th to early 10th centuries, the site features a trapezoidal enclosure with foundations of granaries, administrative buildings, and a moat. It was constructed following the Ritsuryō system's standardized template for provincial governance. Inside the complex, a pond fed by a natural spring yielded numerous artifacts, including wooden tag markers, pottery shards, and coins, indicating its role in both administrative and ritual activities. The ruins' designation as a National Historic Site underscores its cultural and historical importance.
Archaeological Features
Explore the unique architectural and cultural elements found at this historical site
Storage Structures
Defensive Structures
Public and Civic Structures
Religious and Ritual Structures
Historical Timeline
Journey through time and discover key events in this site's archaeological history
Plan Your Visit
Details
- Country
- Japan
- Source
- Wikipedia
More Sites in Japan
Tosaminato
Ancient port settlement with defensive structures.
Shirakawa Kanga ruins
Nara to Heian period administrative complex
Shimozato-Aoyama Stele Production Site
Stone quarrying and production facilities for itabi.
Binmanji Ishibotokedani Necropolis
Medieval Japanese necropolis with 1600 tombs.
Furushida-Higashi ruins
Heian period fortified residence with moat.

Shinoridate
Fortified residence with earthworks and moat