Okiyama Fort

History

Little is known about the Okiyama Fort. It extends across a ridge starting about 700m from the base of Akatsuka Castle. The Kamakura Highway ran through the narrow strip of land between these two fortifications and the most narrow point is an area called Daimon (big gate) indicating that there was likely a large gate here and showing that the two fortifications worked together as one large defense. As a borderland castle between Hojo and Uesugi lands it seems natural that this long hilltop would have been a good strategic defense in times of unrest. It also nearly connects Akatsuka Castle to Shimura Castle creating one large defense.

Visit Notes

The Okiyama Fort is part of the Akatsuka Park. There are a couple places identified on maps as possible trenches and a side bailey, but more serious study of the site is required to understand to what extent it was used as a fortification. The castle is best visited in combination with Akatsuka Castle a 10 min walk away and possibly Shimura Castle.

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Gallery

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Castle Profile
English Name	Okiyama Fort
Japanese Name	沖山の塁
Alternate Names	Okiyama Toride, Okiyama Rui
Founder	Chiba Yoritane?
Year Founded	15th C. (?)
Castle Type	Hilltop
Castle Condition	Ruins only
Historical Period	Pre Edo Period
Features
Visitor Information
Access	Nishi Takashimadaira Station (Toei Mita Line); 10 mins walk
Visitor Information	park, open 24/7
Time Required	30 mins
Location	Tokyo, Tokyo
Coordinates	35° 47' 4.92" N, 139° 39' 1.62" E
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Admin
Added to Jcastle	2020
Contributor	Eric
Admin Year Visited	2019
Admin Visits	May 4, 2019
Friends of JCastle
Jokaku Horoki - Okiyama Toride

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