The history of Aoyama Castle is not well known but it was obviously a part of the defensive network of Ueda and Uesugi clan castles. It is mentioned in the writings of Ota Dokan as being one of the strong fortifications, along with Koshigoe Castle, in the area.
From the mountaintop I discovered there is also a trail leading off to Ogura Castle. It would be fun to follow the mountain top over to Ogura Castle sometime too.
|English Name||Aoyama Castle|
|Castle Condition||Ruins only|
|Designations||Local Historic Site|
|Historical Period||Pre Edo Period|
|Access||Ogawamachi Sta (Tobu Tojo Line), walk 35 mins|
|Visitor Information||Trails open any time.|
|Time Required||90 mins|
|Location||Ogawamachi, Saitama Prefecture|
|Coordinates||36° 2' 15", 139° 16' 5"|
|Visits||February 14, 2015|