Alpine Logs

【Deep Dive Chronicle】Hōō Sanzan: Rock Towers and May Snow

北村 智明

In early May, I ventured to Hōō Sanzan (Phoenix Three Mountains) in the Southern Japanese Alps. Under a state of emergency, I studied weather charts and considered the burden on healthcare systems while choosing this mountain range of snow and ice ridges. After much internal debate, I decided on this climb. Shouldering a tent from Yashajin Pass to Minami-Omuro Hut, I aimed for the Obelisk the following morning on this two-day expedition. This is the record of one who, despite conflicting emotions, still sought the mountains.

Part I: Amidst the Conflict

The Golden Week holidays this year were fraught with indecision.

A state of emergency had been declared, and restrictions on outings were being called for across the country. There were strong voices urging people to refrain from crossing prefectural borders. Should I go to the mountains, or shouldn’t I? For a week, I stared at weather charts while simultaneously questioning myself repeatedly.

Even if I were to go, considering the burden on healthcare, I had to avoid high-risk climbing. Technical climbing, difficult routes, variation routes, ski mountaineering—any mountain activity with risk of injury or accident was unacceptable at this time. I also excluded mountain areas in prefectures under the state of emergency.

Through this process of elimination, Hōō Sanzan remained. The ridgeline consisting of three peaks—Yakushi-dake, Kannon-dake, and Jizō-dake—is positioned at the northern vanguard of the Southern Alps. The elevation is around 2,800 meters. From the highest peak, Kannon-dake, the views of Shirane Sanzan including Kita-dake and Kai-Komagatake are magnificent. And above all, the natural sculptural beauty of Jizō-dake’s Obelisk awaited.

Looking at the weather charts, wind speeds of twenty meters per second covered all of Japan. The Northern Alps and Japan Sea side had to be abandoned. But in the Southern Alps, relatively calm ridge walking would be possible.

It was fortunate that I secured a last-minute tent site reservation at Minami-Omuro Hut. To alleviate symptoms of mountain fever, I wanted to shoulder a tent and gain some elevation. Making excuses to myself, I departed from Yashajin Pass trailhead at eight o’clock as a slow starter.

Fresh green forest trail leading to Yashajin Pass on Hōō Sanzan approach route in Southern Alps
May sunlight filtering through fresh green foliage along the gentle trail to Yashajin Pass.

The trail was gentle. I climbed silently through the fresh green forest. May sunlight filtered through the trees, brightly illuminating my path. I reached Yashajin Pass in about an hour. I caught my breath in front of the hut. The view of Shirane Sanzan was magnificent. The snow ridge of Kita-dake stood out against the blue sky, showing its refined form like a white porcelain ornament.

Panoramic view of Shirane Sanzan including Kita-dake from Yashajin Pass in Southern Japanese Alps
The magnificent Shirane Sanzan range from Yashajin Pass. Kita-dake’s snow ridge stands out like white porcelain against the blue sky.

I continued toward Tsuedate Pass while praying continuously to Yashajin-sama. The trail through the forest was peaceful. However, conditions began to change around Ichigodaira. Residual snow had been packed down and turned to ice. My footing required caution.

I headed toward Tsujiyama, intending to descend to the hut from there, but somehow ended up back at Ichigodaira. I could only laugh. Pulling myself together, I pressed on toward Minami-Omuro Hut.

Packed and frozen snow on trail approaching Minami-Omuro Hut on Hōō Sanzan route
Residual snow on the trail near Ichigodaira, packed down and frozen, requiring careful footing.

Part II: Dawn on the Snow Ridge

I checked in at Minami-Omuro Hut and pitched my tent. It was a calm afternoon with no wind. Spring water flowed beside the hut. This water is known as Southern Alps natural water and is said to be used in Hakushu whisky. I let the cold, clear water flow down my throat. My body joyfully accepted this blessing welling up from the heart of the Southern Alps.

Spring water source at Minami-Omuro Hut tent site on Hōō Sanzan with camping gear
Crystal-clear spring water flowing beside Minami-Omuro Hut, the same source used for Hakushu whisky.

The moment I finished setting up the tent, the temperature began to plummet. The sky turned white with haze, and snow began to dance.

Enough fell to lightly accumulate on the tent. The temperature probably dropped to nearly minus ten degrees Celsius. This cold, in May. I was reminded once again of the Southern Alps’ capriciousness. I crawled into my sleeping bag, preparing for an early start the next morning.

Tent covered with fresh snow at Minami-Omuro Hut campsite during May snowfall in Southern Alps
A sudden temperature drop brought snowfall to the tent site, accumulating lightly despite it being early May.

I woke at 3:30 AM and left the hut at 4:30. Unlike yesterday, it wasn’t cold. The temperature was comfortable. My headlamp illuminated the snow surface. Following the packed trail, I gradually gained elevation. Eventually, the eastern sky began to lighten, and the ridgeline was dyed golden. The silhouettes of mountains floating in the morning glow were as serene as the gradations of an ink painting.

I crossed Sunaharai-dake and reached Yakushi-dake. The wind was perhaps ten meters per second. A ridge-like wind. I passed Yakushi-dake Hut and headed toward Kannon-dake. From here, it was long. Repeating the undulations of the ridgeline, I aimed for Jizō-dake where the Obelisk stands.

Snow-covered ridge between Yakushi-dake and Kannon-dake on Hōō Sanzan at sunrise
The undulating snow ridge between Yakushi-dake and Kannon-dake, illuminated by golden morning light.

The north side of Kannon-dake changed character. It became a steep slope of snow and ice. I moved my feet carefully. Step by step, surely. The ridge wind caressed my cheeks.

Steep snow and ice slope on north side of Kannon-dake requiring careful footwork on Hōō Sanzan
The north side of Kannon-dake transformed into a steep slope of snow and ice, demanding careful foot placement.

Eventually, the Obelisk of Jizō-dake loomed before me. A massive granite rock tower piercing the sky. An obelisk refers to ancient Egyptian stone pillars. When the Meiji-era survey team saw this rock pinnacle, they must have recalled Egyptian monuments. The natural formation created by weathering and erosion possesses an overwhelming power and dignity incomparable to any man-made tower. The foothold areas were worn into ice, but by using the rock sections, I could climb normally. I crawled up the final few meters and stood atop the Obelisk.

Summit marker on the Obelisk of Jizō-dake showing elevation 2,764m on Hōō Sanzan
The summit marker atop the Obelisk, marking the iconic granite tower of Jizō-dake at 2,764 meters.

Shirane Sanzan, Kai-Komagatake, Yatsugatake. The mountains spreading across my vision were overwhelming. Standing in the wind, I lingered for a while. Relief at having reached this May ridgeline and gratitude for this view filled my chest.

Part III: The Return

The descent retraced the ascent route. The temperature began to rise, and the snow started to deteriorate. The slope of Kannon-dake showed a different character than in the morning. My footing loosened, requiring caution.

View during descent from Hōō Sanzan showing surrounding Southern Alps peaks under clear sky
Looking back across the Southern Alps during the descent, with rising temperatures softening the snow.

I traced back through Yakushi-dake and Sunaharai-dake, returning to Minami-Omuro Hut. I broke camp and had a late lunch. The sunlight was strong, and heat enveloped my body.

The descent was long. My strength drained by the merciless sunlight, I descended through Tsujiyama and Tsuedate Pass. Upon entering the forest, I was finally freed from the sun’s rays. I took a breath at Ichigodaira.

By the time I passed Yashajin Pass, I was completely exhausted. Still, my feet moved forward. Before 3:00 PM, I returned to Yashajin Pass trailhead.

The ridgeline of snow and rock characteristic of Hōō Sanzan. May’s capricious weather. The view from the Obelisk. The climb chosen under a state of emergency still certainly gave me the joy of mountains. I lowered my pack and took a deep breath in the parking lot. That I was able to come to the mountains again, that I descended safely—that alone was enough.


LOG SUMMARY

  • Date: May 3–4, 2021 (Monday–Tuesday)
  • Team: Solo
  • Mountain Area: Southern Alps, Hōō Sanzan (Phoenix Three Mountains)
  • Route: Yashajin Pass Trailhead → Yashajin Pass → Tsuedate Pass → Tsujiyama → Minami-Omuro Hut (overnight) → Sunaharai-dake → Yakushi-dake → Kannon-dake → Jizō-dake → return via same route
  • Activity Time: Day 1: 5 hours 36 minutes / Day 2: 10 hours 17 minutes
  • Accommodation: Minami-Omuro Hut tent site
  • Weather: Clear with occasional snow
  • Special Notes: Frozen snow surface on ridge sections
Download file: track-gm-3152169.gpx
Xからの読者コメントをお待ちしています。
ブログ更新の励みになります!
Facebookでのコメントをお待ちしています。
ブログ更新の励みになります!
ABOUT ME
北村智明
北村智明
登山ガイド
日本山岳ガイド協会認定登山ガイドステージ2。ガイド歴10年。東北マウンテンガイドネットワーク及び社会人山岳会に所属し、東北を拠点に全国の山域でガイド活動を展開。沢登り、アルパインクライミング、山岳スキー、アイスクライミング、フリークライミングと幅広い山行スタイルに対応。「稜線ディープダイブ」では、山行の記憶を物語として紡ぎ、技術と装備の選択を語る。
記事URLをコピーしました