Mt Mitsumine

Mt Mitsumine (Japanese: 三峰山) is one of the quiet treasures of central Nagano, a relatively unknown peak rising from the grassy highlands between Kirigamine (霧ヶ峰) and Utsukushigahara (美ヶ原). It’s a gentle mountain that sits on Japan's Central Divide Trail. Modest in height but rich in atmosphere, Mitsumine is shaped by rolling plains and the big open sky that defines this part of the plateau. Because it's located between two far more famous highlands, Mitsumine is often overlooked, yet its views toward both Kirigamine, Utsukushigahara, Yatsugatake (八ヶ岳), Mt Asama (浅間山) and across to the distant North Alps are superb.

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Most hikers start from the nearby trailhead, which offers a short and easy climb. But I prefer the longer approaches from Wada pass or Tobira pass. These routes let you enjoy the full sweep of the undulating terrain with broad grasslands, scattered shrubs and occasional patches of forest. The walk feels spacious and calming, with gentle rises and dips that gradually lead toward Mitsumine’s summit. 

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The topography is classic highland Nagano with open meadows, patches of dwarf bamboo, and pockets of birch and larch that break the grasslands into soft patterns. In summer, alpine flowers brighten the plains and in autumn, the grasses turn gold and sway in the wind. In winter, unfortunately, the road is closed and access is difficult. Apart from this season, however, it's well worth a visit if you have a spare half day.

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(All information here is based on personal observations and experiences. Check official sources before planning or starting any hikes.)