Usual hours and prices, checked 2026-10-07 against the sources under “What this place is”. They can change for holidays and events — confirm before you go. Official site
Our guide
Kanayama Castle, also known as Ōta Kanayama Castle or Nitta Kanayama Castle, was a Sengoku-period mountain castle on top of Mount Kanayama in what is now Ōta, Gunma. The site has been a National Historic Site since 1990.
It is on a mountaintop. We have not checked the paths or a public-transport route, so look for local information before you go.
Written by japan-spots.com (2026-09-22) from the sources credited on this page. Distances are straight lines between map positions.
Photos
Photos from Wikimedia Commons, each under its own licence — see credits
- Kanayamajo-ato — Mocchy · Public domain · source · resized
- Remaining stone walls in Kanayama — AkaneM · CC BY 4.0 · source · resized
- Mount Nitta Kanayama view from Ota city office — photo: Qurren ( talk ) Taken with Canon IXY 430F (Digital IXUS 245 HS) · CC BY-SA 3.0 · source · resized
- Kanayamajyo — デジタルカメラ · Public domain · source · resized
- Kanayama Castle's major enclosure — AkaneM · CC BY 4.0 · source · resized
- KanayamaCastle — Taketarou · CC BY-SA 1.0 · source · resized
- OtaKanayamaCastle — Taketarou · CC BY-SA 1.0 · source · resized
What this place is
Kanayama Castle (金山城, Kanayama-jō) was a Sengoku period yamashiro-style castle located on top of Mount Kanayama in what is now Ōta, Gunma Prefecture, Japan. The site has been protected as a National Historic Site since 1990. The castle was also known as Ōta Kanayama Castle or as Nitta Kanayama Castle.
Visitor information checked: 2026-10-07 · Official visitor information
Background text from Wikipedia (CC BY-SA 4.0)
What to expect at this type of place: Castle
Getting there
We do not have step-by-step transit directions for this spot yet. Open the location on Google Maps for routes from where you are staying.
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