Mount Irazu

Mount Irazu is a summit in the Shikoku Mountains within Kochi Prefecture, rising approximately 1,340 meters above sea level. The peak sits in a forested mountainous area with established walking routes that connect to the surrounding region around Tsuno.

The peak was designated as a First Order Triangulation Station, serving as a key reference point for Japan's geodetic survey work. Its role in mapping efforts made it an important landmark in the region's topographic documentation.

The traditional name in Japanese, Irazuyama, reflects the mountain's integration into local geographical nomenclature and regional identity.

The climb follows maintained hiking trails with clear markers that make navigation through the mountainous terrain safe and straightforward. Visitors should wear sturdy footwear and prepare for changing weather conditions at elevation.

The peak ranks as the third highest elevation in the local area with a topographic prominence of around 400 meters, which qualifies it as an independent summit. This geological characteristic makes it geographically distinct and attractive to hikers exploring different peaks across the region.

Location: Tsuno

Elevation above the sea: 1,336.2 m

Part of: 100 Famous First Order Triangulation Station Mountains, 100 Famous Shikoku Mountains

GPS coordinates: 33.44084,133.06306

Latest update: December 12, 2025 14:22