Overview
Mount Kikuishi rises to 1,209.8 meters near the northern end of the Ushiro-Tateyama mountain range within the Hida Mountains (Northern Japan Alps), straddling the border between Itoigawa City in Niigata Prefecture and Asahi Town in Toyama Prefecture.
Highlights
- ●A summit on the border of Itoigawa City, Niigata, and Asahi Town, Toyama
- ●The name Kikuishi, said to derive from ammonite fossils
- ●Its historical grouping with Inu-ga-take and Mount Shiratori as the Shimokoma Sanzan
- ●Views from the northern Ushiro-Tateyama ridgeline
History
The peak was formerly known as Shimokoma-ga-take, and together with the neighboring Inu-ga-take and Terayama (today's Mount Shiratori) it was referred to as the Shimokoma Sanzan, a name that appeared repeatedly on old maps of Ecchu, the historical province now corresponding to Toyama. Its current name is said to derive from kikuishi, an old term for ammonite fossils.
Access
Climbers generally approach from trailheads on the Asahi Town side, but trail conditions and transport options can change, so it is best to check the latest official information from local authorities or mountaineering resources before setting out.
Best season
Being part of the northern Japan Alps, the mountain holds snow for much of the year, and the recommended climbing period shifts depending on residual snowpack. The snow-free stretch from early summer through autumn is generally considered easier, though conditions vary year to year, so confirming current information beforehand is essential.
Map
36.9444, 137.7108 · Wikidata
Suggested itinerary
- 1Access the trailhead on the Asahi Town side
- 2Walk the ridgeline in the northern Ushiro-Tateyama range
- 3Reach the summit of Mount Kikuishi
- 4Descend while taking in the surrounding peaks tied to the old Shimokoma Sanzan
Did you know?
💡 Kikuishi is an old word for ammonite fossils and is said to be the source of the mountain's name. Its location straddling a prefectural border, along with the old Shimokoma Sanzan grouping, reflects its long-standing recognition as a peak linking the former provinces of Ecchu and Echigo.
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