Nozori Dam, Rock-fill dam in Nakanojō, Japan
Nozori Dam is a rock-fill dam built across a mountain river in Gunma Prefecture at high elevation. The structure creates a lake surrounded by forested slopes within a national park area.
The dam was built in the 1950s as a pioneering example of rock-fill dam technology in Japan. It represented a turning point in how the country approached hydroelectric power generation.
The name derives from the surrounding Joshinetsu Plateau region. Locals and visitors come to experience the mountain setting and enjoy the quiet rhythm of rural life in this high-altitude landscape.
The area features an observation point, visitor center, and camping options for those wanting to stay nearby. Access and facilities work best during warmer months when services are fully available.
The protected wildlife area around the lake is home to rare mountain goats and other forest animals that visitors might spot. These animal populations thrive in the subalpine forest setting, making the region ecologically significant.
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