The castle is nicknamed 'Kasumigajo' or 'Mist Castle' because of the frequent fog that blankets the area.
The Minowa Gate was reconstructed in 1982 using traditional cedar wood techniques based on original Edo-period blueprints.
The site contains a stone monument commemorating the 'Nihonmatsu Shonentai', a unit of young samurai who died during the Boshin War.
The castle grounds were originally built as a base to defend against the Date clan in the 15th century.
The stone walls, or ishigaki, remain largely in their original 17th-century configuration despite the destruction of wooden structures.
Nihonmatsu Castle, also known as Kasumigajo, is a historical site located in the heart of Fukushima Prefecture. It served as the seat of the Niwa clan during the Edo period. The castle was largely destroyed during the Boshin War in 1868, leaving behind significant stone walls and foundation remnants. The site is now a designated public park renowned for its extensive seasonal vegetation. A reconstructed Minowa Gate serves as a primary entrance, utilizing traditional timber techniques. The park layout incorporates varying elevations, providing elevated views over the surrounding Nihonmatsu cityscape. Historical markers across the grounds detail the site's role in local provincial governance. The original donjon was never rebuilt, leaving the mountaintop space as a flat lookout point. The castle grounds are maintained as a historical park with walking paths throughout the ruins.
The view of the valley from the top foundation base near the site of the former donjon.
Wear sturdy walking shoes as the path to the main foundation involves a steep uphill climb.
Bring portable mosquito repellent if visiting during the summer months due to the heavy forest canopy.
Carry a water bottle, as vending machines are limited once you begin the ascent toward the higher ruins.
Attempting to climb or sit on the historical stone walls, as they are fragile and pose a fall risk.
Park grounds are accessible year-round, though some internal exhibits or gatehouses may have restricted access during winter snowfall.
Stay on marked trails to protect the fragile stonework and archeological foundations.
