Mount Kōyama

What it is

• A 532.8-meter mountain spanning the Susa and Tamagawa areas of Hagi City.
• The summit serves as a site for a television and FM relay station.
• Hosenji Temple stands on the mountain grounds enshrining the deity Kotei.
• The eastern peak houses a small hall known as Gyojado.

What to see

• Magnetic gabbro rocks at the summit designated as a national natural monument.
• Forty-nine ship votive tablets preserved as national cultural properties.
• Natural wind caves formed by ancient lava flows within the mountain.
• An observatory at the peak providing views near the triangulation point.

Getting there

• Accessible via JR Susa Station for those arriving by train.
• A hiking trail leads visitors to the summit in approximately one hour.

Notes written by Japan Gems from facts in Japanese Wikipedia.