
Guide
Naramata Dam is a major dam facility located in Minakami Town, Tone District, Gunma Prefecture. The site offers breathtaking views of the dam's massive body and the surrounding natural landscape. On the left bank, the 'Hilltop Naramata' museum provides educational insights into the facility. Please note that the access road for dam management is subject to seasonal availability and snow conditions, meaning certain periods offer the best opportunities to observe the dam's structure and the surrounding environment.
Managed by the Water Resources Management Organization, this facility serves as a vital piece of infrastructure. The surrounding area is well-equipped with facilities designed to convey information regarding the dam's structure and function. The operational hours of the management office and the availability of the management roads are determined by natural conditions, such as seasonal changes and snow levels.

The primary highlights include the massive dam wall, the impressive sight of water being discharged, and the sweeping natural scenery. At the 'Hilltop Naramata' museum on the left bank, visitors can learn more about the dam's engineering and history. A particularly striking sight occurs during the snowmelt season, when water can be seen being released from the spillway on the left bank.
The access road for the dam is typically open from early May to late November each year. During this window, visitors can freely explore the scenery around the dam. Conversely, from late November to early May, the road may be closed due to heavy snowfall, so please check the status before traveling. The Hilltop Naramata museum is generally open from 9:30 AM to 4:00 PM, making daytime visits the most common way to experience the site.
Visitors can enjoy observing the grand scale of the dam's structure and the surrounding natural beauty. At 'Hilltop Naramata,' you can engage with various exhibits and materials related to the dam. Depending on the season, you may also witness the powerful spectacle of water being released through the dam's spillways.
The area surrounding the dam is characterized by its pristine natural environment. The dam management office and the Hilltop Naramata museum are located in close proximity to the dam structure itself, making it easy to navigate between the facility and the museum.
When visiting the dam, please ensure you wear clothing appropriate for the season. Special preparation is required during the snowmelt or winter periods due to low temperatures and potential snow. Please note that the interior of the dam facility is generally not open to the public unless a special event is being held. Always check the management office's hours and the road's opening status in advance. Regarding payments, while many areas are free, please be prepared with cash or a credit card if using specific facility services.