{"id":1382,"date":"2026-09-11T06:59:13","date_gmt":"2026-09-11T06:59:13","guid":{"rendered":"https:\/\/www.shirolog.info\/?p=1382"},"modified":"2026-09-11T07:14:13","modified_gmt":"2026-09-11T07:14:13","slug":"027-ueda","status":"publish","type":"post","link":"https:\/\/www.shirolog.info\/en\/027-ueda\/","title":{"rendered":"[100 Fine Castles of Japan – No.027] Ueda Castle: Decoding Sanada’s Masterful Tactics and Terrain Traps That Repelled the Tokugawa Twice"},"content":{"rendered":"\n

1. Basic Info to Know Before You Visit<\/h2>\n\n\n\n
Item<\/strong><\/td>Details<\/strong><\/td><\/tr><\/thead>
Castle Name (No.)<\/strong><\/td>Ueda Castle (100 Fine Castles of Japan – No.027)<\/td><\/tr>
Alternate Names \/ Location<\/strong><\/td>Amagafuchi Castle, Sanada Castle, Isezaki Castle \/ Ninomaru, Ueda City, Nagano Prefecture<\/td><\/tr>
Built By \/ Year Built<\/strong><\/td>Masayuki Sanada \/ Tensho 11 (1583)<\/td><\/tr>
Main Historical Remains<\/strong><\/td>West Yagura (Original Turret, Nagano Prefectural Treasure), South\/North Yagura, Higashi-Koguchi Yagura Gate, Sanada Stone, Earthen Walls, Dry Moats, Amagafuchi (Cliffs & Revetment Stone Wall Remains)<\/td><\/tr>
Stamp Station Locations<\/strong><\/td>Ueda Castle Ruins Park Management Office, Ueda City Museum, Ueda City Tourist Information Center<\/td><\/tr>
Parking<\/strong><\/td>Ueda Castle Ruins Parking Lot (North Tourist Parking Lot \/ Castle Ruins Parking Lot available. Flat ground, easy access)<\/td><\/tr>
Estimated Duration<\/strong><\/td>Approx. 4 hours (9:00\u201313:00 \/ Including turret inspection, Sanada Shrine visit, and browsing the souvenir shop)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2. [100 Fine Castles Stamp Spot] Stamping Experience at Ueda Castle Ruins Park Management Office<\/h2>\n\n\n\n

For anyone collecting the 100 Fine Castles of Japan stamps, knowing the exact spot is key.<\/p>\n\n\n\n

Our family got our stamp at the Ueda Castle Ruins Park Management Office (right next to the ticket window for the Higashi-Koguchi Yagura Gate and North\/South Yagura Turrets). Since it’s right beside the entrance counter for the turrets and gate, we were able to stamp our book seamlessly right as we bought our admission tickets before heading inside.<\/p>\n\n\n\n

The process of getting out our stamp book was super smooth, which really built up the hype to kick off our tour. While there are other stamp stations at the “Ueda City Museum” and “Ueda City Tourist Information Center,” this Management Office window is by far the most convenient and recommended stop along the main visitor route.<\/p>\n\n\n\n

3. [On-Site Field Report] Key Strategic Points & A Dad\u2019s Tactical Breakdown<\/h2>\n\n\n\n

\u3010Wish I Knew This Sooner!\u3011 Studying the History & Terrain First Makes It 100 Times More Thrilling!<\/h3>\n\n\n\n

After exploring Ueda Castle in person, I dove deep into researching the battle structures and terrain traps used back in the day, and I realized with absolute clarity: “I 100% should have done my homework before coming!”<\/p>\n\n\n\n

While looking at the architectural elegance of the main keep and turrets is fun on its own, understanding the castle’s defensive logic and tactical story beforehand\u2014like “Why is there a gate right here?” or “Why was this cliff so critical?”\u2014completely elevates the visual resolution of everything right before your eyes.<\/p>\n\n\n\n

The Precipitous Amagafuchi Cliffs, Restored Structures, and the Legendary “Sanada Stone”<\/h3>\n\n\n\n

Stretching along the south side of the Honmaru (inner citadel) is “Amagafuchi,” a sheer cliff soaring roughly 12 meters (39 feet) high. Historically, a tributary of the Chikuma River flowed below as a treacherous natural moat, and looking down from above leaves you in awe of its natural defensive strength. Today, it has been transformed into a peaceful green park; seeing children playing calmly right where an ancient battleground once stood created quite a memorable contrast.<\/p>\n\n\n\n

The site is packed with highlights, including the surviving “West Yagura” (dating back to the Sengoku Tadamasa period around 1626\u20131628) and the wooden-reconstructed “Higashi-Koguchi Yagura Gate.” The massive rock known as the “Sanada Stone,” sitting right beside the gate, is an absolute must-see. Legend says Sengoku Tadamasa tried to move this massive stone (about 2.5m high by 3m wide) when relocating, but it wouldn’t budge an inch. Both my son and I held our breath at its unbelievable scale.<\/p>\n\n\n\n

As we strolled through the grounds, we even ran into the “Shinshu Ueda Omotenashi Bushotai” (costumed samurai troupe)! We managed to take a commemorative picture with Lord Yukimura himself<\/strong>, making it the absolute highlight of our trip memories.<\/p>\n\n\n\n

\"Sanada<\/figure>\n\n\n\n

4. \u3010ShiroLog Special\u3011Just 2,000 Troops Crushed 7,000 Enemies!? Unraveling the First Battle of Ueda via Models & Topography<\/h2>\n\n\n\n

1. Basic Data on the First Battle of Ueda<\/h3>\n\n\n\n
    \n
  • Date:<\/strong> Tensho 13 (1585)<\/li>\n\n\n\n
  • Matchup:<\/strong> Masayuki Sanada’s Forces (approx. 2,000) vs. Ieyasu Tokugawa’s Forces (approx. 7,000)<\/li>\n\n\n\n
  • Enemy Invasion Route:<\/strong> The Tokugawa army advanced from the Komoro area to the east, marching toward Ueda along the old Hokokukai Highway.<\/li>\n<\/ul>\n\n\n\n

    2. \u3010Analysis 1\u3011Trap No. 1: Why Did the Tokugawa Forces Cross the “Kanga River”?<\/h3>\n\n\n\n
    \"Access<\/figure>\n\n\n\n

    The Kanga River is about 3.5 km away from Ueda Castle Ruins Park. Masayuki factored this vast distance into his grand tactical chessboard.<\/em><\/p>\n\n\n\n

      \n
    • Positional Relationship:<\/strong> A natural river located about 3.5 km east of Ueda Castle.<\/li>\n\n\n\n
    • ShiroLog Breakdown:<\/strong> Unlike the tight rivers immediately flanking Ueda Castle (the Yadesawa and Chikuma Rivers), the Kanga River is shallow and wide, making it easy for a massive army to ford. Masayuki intentionally allowed them to cross effortlessly, luring the Tokugawa forces into a false sense of security that they could overrun the castle in one swift push.<\/li>\n<\/ul>\n\n\n\n

      3. \u3010Analysis 2\u3011The Castle’s Main Mechanism: The Bottleneck Trap from “Otemon” to “Higashi-Koguchi”<\/h3>\n\n\n\n
      \"Diorama<\/figure>\n\n\n\n

      Model at the museum: Blue outline indicates the Otemon Gate; Red outline indicates the Higashi-Koguchi Gate.<\/p>\n\n\n\n

        \n
      • The Wide-Open Otemon Gate (Otemon Park) (Outlined in Blue):<\/strong> Masayuki left the main front entrance (Otemon) wide open, making it look completely defenseless to entice the Tokugawa vanguard (several thousand soldiers) deep into the grounds.<\/li>\n\n\n\n
      • Lockdown & Ambush at Higashi-Koguchi (Outlined in Red):<\/strong> The moment the vanguard reached the inner Higashi-Koguchi Gate, heavy wooden gates slammed shut, trapping them while a barrage of matchlock gunfire, arrows, and giant boulders rained down from above!<\/li>\n\n\n\n
      • Massive Gridlock Between Otemon (Blue) and Higashi-Koguchi (Red) (approx. 300\u2013400m):<\/strong> Unaware that the front line had ground to a halt, thousands more Tokugawa soldiers behind kept pushing forward into the narrow corridor, resulting in a completely immobile “human crush” that left them utterly decimated.<\/li>\n<\/ul>\n\n\n\n
        \"Child<\/figure>\n\n\n\n

        Looking down from the South Yagura toward the Otemon Gate (east side). Matchlock gunners would have picked off advancing enemies from this exact angle.<\/em><\/p>\n\n\n\n

        \"View<\/figure>\n\n\n\n

        Defenders likely sniped from right here with matchlocks. No time for novelty photo cutout stands!<\/p>\n\n\n\n

        \"Steep<\/figure>\n\n\n\n

        Stone-drop chute (Ishi-otoshi) near Otemon Gate.<\/p>\n\n\n\n

        4. \u3010Analysis 3\u3011Escape Cut Off! The Topographical “Impassable Walls”<\/h3>\n\n\n\n

        Even as panic broke out, Tokugawa soldiers couldn’t flee North or South; they were forced to retreat east along the narrow single road they came from. The natural terrain left them no other choice.<\/p>\n\n\n\n

        \"Antique<\/figure>\n\n\n\n
          \n
        1. West (Honmaru Inner Citadel):<\/strong> The Higashi-Koguchi Gate was bolted tight, blocking all forward advance.<\/li>\n\n\n\n
        2. North (Yadesawa River) (Top yellow line on the map):<\/strong> A steep river modified into a moat backed by mountains blocked the northern exit.<\/li>\n\n\n\n
        3. South (Amagafuchi Cliffs) (Bottom yellow line on the map):<\/strong> A 10-meter-plus cliff drop into what was once the Chikuma River flow (jumping down meant certain death!).<\/li>\n<\/ol>\n\n\n\n
          \"Information<\/figure>\n\n\n\n

          Signboard for “Amagafuchi” on the south side of the Honmaru. Details how the 10-meter cliff and Chikuma River served as a formidable natural barrier.<\/em><\/p>\n\n\n\n

          \"Ueda<\/figure>\n\n\n\n

          Looking up at the 10m cliff face from below Amagafuchi. Back then, the Chikuma River flowed directly at the base, making any escape or assault from the south virtually impossible.<\/em><\/p>\n\n\n\n

          5. \u3010Analysis 4\u3011Hellish Pursuit: Fire Attacks, Hidden Ambushes, and the Flash Flood Attack at Kanga River<\/h3>\n\n\n\n

          Repelled at Higashi-Koguchi, the panicked Tokugawa army had no choice but to retrace their steps. This was where Masayuki’s grand trap really shifted into high gear.<\/p>\n\n\n\n

          \"Historic<\/figure>\n\n\n\n

          Map showing the escape route (pink) and tactical traps. The line fleeing east along Yadesawa River from Higashi-Koguchi, the townhouses fire-attack zone (blue), and temple ambush points (yellow boxes) were meticulously calculated.<\/em><\/p>\n\n\n\n

            \n
          • Fire Attack on the Old Hokokukai Highway (West Trap, Blue Zone):<\/strong> Sanada forces set fire to merchant townhouses along the densely packed highway (Haramachi & Yanagimachi). Thick smoke and flames severed communication and line of sight. Flanked on the west by the Yadesawa River, Tokugawa troops couldn’t break left either.<\/li>\n\n\n\n
          • Ambush Attacks from Temple Grounds (East Trap, Yellow Boxes):<\/strong> A line of temples (Kinsho-ji, Joraku-ji, Honyo-ji) lined the east side of the highway. Sanada archers and matchlock squads hid behind tall earthen walls and temple gates, unloading massive point-blank volleys into the right flank of the panicked enemy.<\/li>\n\n\n\n
          • Total Panic: “Fire on the Left, Bullets on the Right”:<\/strong> Wall of fire and river on the left, gunfire from temples on the right, pursuing soldiers behind. The Tokugawa army lost all cohesion and fled blindly east along the Yadesawa River toward Komoro.<\/li>\n<\/ul>\n\n\n\n
            \"Local<\/figure>\n\n\n\n
              \n
            • The Kanga River Flash Flood (Legendary Trap):<\/strong> After surviving the town’s nightmare and fleeing 3.5 km back to the Kanga River, exhausted Tokugawa troops thought, “Finally… an easy river to cross! We made it!” Just as they rushed into the water, Sanada forces released a dammed river upstream, sending a roaring wall of water downstream that wiped out the remaining force.<\/li>\n<\/ul>\n\n\n\n

              6. ShiroLog Summary & Tactical Insights<\/h3>\n\n\n\n

              What makes Masayuki Sanada so terrifying wasn’t just building strong stone walls, but transforming the entire local geography\u2014cliffs, rivers, narrow town streets, and even a river 3.5 km away\u2014into one gigantic, interconnected battlefield trap.<\/p>\n\n\n\n

              By reviewing on-site photos and diorama models afterward, I could truly visualize the exact distance between gates and feel the terrifying angles Sanada gunners had over their targets. Next time, I definitely want to visit with full prior research, walking the Kanga River battlefield and Otemon ruins on foot to fully experience the immense scale of the Battle of Ueda!<\/p>\n\n\n\n

              5. Family & Kids Travel Guide<\/h2>\n\n\n\n
                \n
              • My Son’s Reaction:<\/strong> He was thrilled drawing the “Warlord Omikuji” (fortune slip) at Sanada Shrine and picking out warlord merch like the Sanada six-mon coin pouch and commemorative coins! On top of that, taking a photo with Yukimura-sama from the Samurai Hospitality Troupe sent his excitement over the moon\u2014it was easily the peak highlight of our visit.<\/li>\n\n\n\n
              • Dad’s Advice & Footing:<\/strong> Unlike mountain castles with steep climbs that destroy your knees, Ueda Castle is set in a flat, beautifully paved park. Outside of steep stairs inside the yagura turrets, it’s an extremely accessible, family-friendly location that grandparents and young kids can enjoy without worry.<\/li>\n<\/ul>\n\n\n\n

                6. Castle Crawl Extras (Lunch & Souvenirs)<\/h2>\n\n\n\n

                Lunch: Wafu Tonkotsu Ramen Buren (Ario Ueda Branch)<\/h3>\n\n\n\n

                After exploring, we popped into “Ario Ueda,” a shopping mall right near the castle grounds, to eat at “Wafu Tonkotsu Ramen Buren.”<\/p>\n\n\n\n

                \"Illuminated<\/figure>\n\n\n\n

                Their soy-sauce ramen features a seafood dashi broth topped with fine pork back-fat\u2014slightly sweet, incredibly savory, and packed with flavor! The melt-in-your-mouth tender pork completely washed away our walking fatigue. They operate mostly in Niigata and Nagano; it was so delicious that if there were a branch near my house, I’d be a regular customer!<\/p>\n\n\n\n

                Loot & Souvenirs (Including Sanada History Museum)<\/h3>\n\n\n\n
                \"Collection<\/figure>\n\n\n\n
                \"Red<\/figure>\n\n\n\n

                <\/p>\n\n\n\n

                  \n
                • Samurai Card Collection:<\/strong> Ieyasu Tokugawa, Nagamasa Azai, Yoshihiro Shimazu (from Sanada Shrine’s Warlord Fortunes)<\/li>\n\n\n\n
                • Shrine Blessings & Limited Merch:<\/strong> Sanada Six-Mon Coin Pouch Charm, “Sanada – Japan’s Greatest Warrior” Commemorative Medal, Carved Wooden Root Strap Magnet<\/li>\n\n\n\n
                • Books & Info:<\/strong> Sanada Clan History Museum Booklet, clear file folders, walking maps<\/li>\n\n\n\n
                • Local Gourmet:<\/strong> Ueda specialty “Oidare Yakitori Stick Curry” (comes with a collectible battle sticker)<\/li>\n<\/ul>\n\n\n\n

                  7. Recommended Nearby Spots<\/h2>\n\n\n\n
                    \n
                  • Ario Ueda (Shopping Mall):<\/strong> A short drive from Ueda Castle Ruins Park. Features excellent parking and a massive food court\u2014perfect for families looking to relax, eat, or freshen up after a long walk around the castle. “Wafu Tonkotsu Ramen Buren” inside the food court is my top recommendation for delicious soy-sauce ramen!<\/li>\n\n\n\n
                  • Komoro Castle (100 Fine Castles of Japan – No.028):<\/strong> We visited Komoro Castle the previous day. During the Second Battle of Ueda in 1600, Hidetada Tokugawa set up his main headquarters here with 38,000 troops before marching on Ueda Castle. While I wished we had visited both on the same day to feel the true geographic distance between Komoro and Ueda firsthand, exploring both castles clearly connected the historical battle routes right before Sekigahara in my mind.<\/li>\n\n\n\n
                  • Sanada Shrine (Honmaru Site):<\/strong> Located inside the castle grounds, this shrine honors successive lords of Ueda. Featuring highlights like a giant red-armored helmet and the Sanada Well, it’s packed with victory charms and samurai merch that history fans will love.<\/li>\n<\/ul>\n\n\n\n
                    \"Parent<\/figure>\n","protected":false},"excerpt":{"rendered":"

                    1. Basic Info to Know Before You Visit Item Details Castle Name (No.) Ueda Castle (100 Fine Castles of Japan – No.027) Alternate Names \/ Location Amagafuchi Castle, Sanada Castle, Isezaki Castle \/ Ninomaru, Ueda City, Nagano Prefecture Built By \/ Year Built Masayuki Sanada \/ Tensho 11 (1583) Main Historical Remains West Yagura (Original […]<\/p>\n","protected":false},"author":1,"featured_media":1318,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"swell_btn_cv_data":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_locale":"en_US","_original_post":"https:\/\/www.shirolog.info\/027-ueda\/","_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[4],"tags":[17],"class_list":["post-1382","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-castle","tag-2026nagano","en-US"],"acf":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/phc6Nz-mi","jetpack_featured_media_url":"https:\/\/www.shirolog.info\/wp-content\/uploads\/2026\/01\/PXL_20260815_012649851-scaled.jpg","_links":{"self":[{"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/posts\/1382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/comments?post=1382"}],"version-history":[{"count":5,"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/posts\/1382\/revisions"}],"predecessor-version":[{"id":1411,"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/posts\/1382\/revisions\/1411"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/media\/1318"}],"wp:attachment":[{"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/media?parent=1382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/categories?post=1382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shirolog.info\/wp-json\/wp\/v2\/tags?post=1382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}