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|Japanese Name=東野山砦
|Japanese Name=東野山砦
|Romaji Name=Tohnoyama Toride
|Romaji Name=Tohnoyama Toride
|Alternate Names=Saneyama-jo
|Founder=Hashiba Hideyoshi
|Founder=Hashiba Hideyoshi
|Year Founded=1583
|Year Founded=1583
|Castle Type=Mountaintop
|Castle Type=Mountaintop
|Castle Condition=Ruins only
|Castle Condition=Ruins only
|Designations=Local Historic Site
|Historical Period=Pre Edo Period
|Historical Period=Pre Edo Period
|Features=trenches
|Features=trenches
|Visitor Information=Well signposted and maintained, 40min hike from the base of the mountain
|Access=JR Yogo Station; 3.5 km to trailhead
|Visitor Information=Well signposted and maintained, 40-minute hike from the base of the mountain
|Time Required=60 mins on site
|Time Required=60 mins on site
|Yamaptrail=https://yamap.com/activities/40828441
|City=Nagahama
|City=Nagahama
|Prefecture=Shiga Prefecture
|Prefecture=Shiga Prefecture
|Notes=This is possibly the most interesting, well maintained and signposted of the Shizugatake Battlefield forts, but it has become a little more challenging to reach the site, so it might not be as well maintained in the future.  
|Notes=This is possibly the most interesting, well-maintained, and signposted of the Shizugatake Battlefield forts. Access has become slightly more difficult, so it may not remain as well maintained in the future.


There are four ways into the site. You could easily walk the former, now closed, logging road. It is a bit long and there is now a barrier across the road but you can easily open it. There is also a sign that says 2.3km to the castle, so I assume it means visitors are welcome this way. The second way is to hike up through [[Shobundai Fort]] and take the steep ridge up to the fort. The main route into [[Shobudani Fort]] is also past this barrier on the left. The third route is a marked trail near the Hachiman Shrine. This is the only one I did not try but the trailhead is well marked with a sign by the road and may be the most proper route.  
There are four ways into the site. The first is the former (now closed) logging road. It is a bit long and has a barrier, but it can be opened easily. A sign indicates “2.3 km to the castle,so it appears visitors are still welcome this way. Go through the gate and follow to the right. See the photo below.  


The route I took was to start from [[Imaichikami Fort]]. I hiked the "trail" (itself somewhat confusing in parts) up to [[Imaichikami Fort]].  Hike past this site (after visiting of course) to the ridge top to link up with the old logging road. From here I followed the old road mostly downhill to Tonoyama Fort. After visiting Tonoyama Fort I then descended the mountainside through [[Shobudani Fort]].  
The second option is to hike through [[Shobudani Fort]] and take the steep ridge up. The main route into Shobudani is also beyond this same barrier, branching left.


Tonoyama Fort is often misread as “Higashinoyama,” but the correct reading is “Tohnoyama”, a local dialectal way to read the characters 東野.
The third is a marked trail near the Hachiman Shrine. I did not take this path, but the trailhead is clearly marked by the roadside and may be the most proper route.
|History=Tohnoyama Fort anchored the east side of the Hideyoshi's forward defensive line at the [[Battle of Shizugatake]] It was positioned across the valley from [[Dogiyama Fort]] with an embankment crossing the valley between the two forts. It is even higher in elevation than [[Shizugatake Fort]] and had satellite forts towards the base of the mountain at [[Shobudani Fort]] and [[Mizotani Fort]]. Under Hori Hidemasa this fort also garrisoned the largest number of soldiers outside of Hideyoshi's main encampment at [[Tagamiyama Castle]].
 
The route I took was to start from [[Imaichikami Fort]]. I hiked the trail (which is somewhat confusing in parts) from the Hachiman Shrine up to Imaichikami, then continued past it to the ridge where I linked up with the old logging road. I was not sure this route would work. I was guessing from the maps but it turned out well. From there I followed the road mostly downhill to Tohnoyama Fort. After visiting, I descended via [[Shobudani Fort]].
 
Tohnoyama Fort is often misread as “Higashinoyama,” but the correct reading is “Tohnoyama,a local dialectal pronunciation of 東野山.
|History=Tohnoyama Fort anchored the east side of Hideyoshi's forward defensive line at the [[Battle of Shizugatake]]. It was positioned across the valley from [[Dogiyama Fort]], with an embankment crossing the valley between the two. It sits about the same elevation as [[Shizugatake Fort]], and was supported by satellite forts further down the slope at [[Shobudani Fort]] and [[Mizotani Fort]]. Under the command of Hori Hidemasa, this fort housed the largest garrison outside of Hideyoshi's main encampment at [[Tagamiyama Castle]]. Similar to [[Genbao Castle]] this castle was also abandoned following the battle making it a valuable artifact of Shokuhoukei (織豊係城郭) castle construction.
|Year Visited=2025
|AddedJcastle=2025
|Visits=April 20, 2025
|Visits=April 20, 2025
|GPSLocation=35.55581, 136.20936
|GPSLocation=35.55581, 136.20936
|Contributor=Eric
|Contributor=Eric
|FriendsLinks={{FriendsLinks
|FriendWebsiteName=Kojodan
|FriendWebsiteURL=https://kojodan.jp/castle/2518/
}}{{FriendsLinks
|FriendWebsiteName=Jokaku Horoki
|FriendWebsiteURL=https://www.hb.pei.jp/shiro/oumi/tonoyama-jyo/
}}
}}
}}

Latest revision as of 20:32, 26 June 2025

This is possibly the most interesting, well-maintained, and signposted of the Shizugatake Battlefield forts. Access has become slightly more difficult, so it may not remain as well maintained in the future. There are four ways into the site. The first is the former (now closed) logging road. It is

Tohnoyamashizu15.jpg

History

Tohnoyama Fort anchored the east side of Hideyoshi's forward defensive line at the Battle of Shizugatake. It was positioned across the valley from Dogiyama Fort, with an embankment crossing the valley between the two. It sits about the same elevation as Shizugatake Fort, and was supported by satellite forts further down the slope at Shobudani Fort and Mizotani Fort. Under the command of Hori Hidemasa, this fort housed the largest garrison outside of Hideyoshi's main encampment at Tagamiyama Castle. Similar to Genbao Castle this castle was also abandoned following the battle making it a valuable artifact of Shokuhoukei (織豊係城郭) castle construction.


Field Notes

This is possibly the most interesting, well-maintained, and signposted of the Shizugatake Battlefield forts. Access has become slightly more difficult, so it may not remain as well maintained in the future.

There are four ways into the site. The first is the former (now closed) logging road. It is a bit long and has a barrier, but it can be opened easily. A sign indicates “2.3 km to the castle,” so it appears visitors are still welcome this way. Go through the gate and follow to the right. See the photo below.

The second option is to hike through Shobudani Fort and take the steep ridge up. The main route into Shobudani is also beyond this same barrier, branching left.

The third is a marked trail near the Hachiman Shrine. I did not take this path, but the trailhead is clearly marked by the roadside and may be the most proper route.

The route I took was to start from Imaichikami Fort. I hiked the trail (which is somewhat confusing in parts) from the Hachiman Shrine up to Imaichikami, then continued past it to the ridge where I linked up with the old logging road. I was not sure this route would work. I was guessing from the maps but it turned out well. From there I followed the road mostly downhill to Tohnoyama Fort. After visiting, I descended via Shobudani Fort.

Tohnoyama Fort is often misread as “Higashinoyama,” but the correct reading is “Tohnoyama,” a local dialectal pronunciation of 東野山.


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Gallery
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Castle Profile
English Name Tohnoyama Fort
Japanese Name 東野山砦
Alternate Names Saneyama-jo
Founder Hashiba Hideyoshi
Year Founded 1583
Castle Type Mountaintop
Castle Condition Ruins only
Designations Local Historic Site
Historical Period Pre Edo Period
Features trenches
Visitor Information
Access JR Yogo Station; 3.5 km to trailhead
Hours Well signposted and maintained, 40-minute hike from the base of the mountain
Time Required 60 mins on site
Hiking Trail View on Yamap
Location Nagahama, Shiga Prefecture
Coordinates 35.55581, 136.20936
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Admin
Added to Jcastle 2025
Contributor Eric
Admin Year Visited 2025
Admin Visits April 20, 2025
Friends of JCastle
Kojodan
Jokaku Horoki


2.00
(one vote)
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