Last updated: March 05, 2021
Beautiful scenery surrounds this dam throughout the four seasons
Built in the middle basin of Agatsuma River, this dam is responsible for flood control and irrigation. You can see the lake and surrounding mountains covered in greenery from atop the dam or the observation area. In addition to facilities for barbequing and camping, the area around the manmade lake features an amphibious bus, canoes, and facilities to enjoy a variety of water activities.
From late October through early November, around the same time that the nearby Agatsumakyo Gorge is covered in beautiful autumn foliage, the mountains surrounding Yamba dam are also colored with the reds and oranges of fall leaves.
Yokiya, Naganohara, Agatsuma District ( Map)
About 10 minutes by taxi from Naganohara-Kusatsuguchi Station
About 1 hour from Shibukawa-Ikaho Onsen IC of Kan-Etsu Expressway
Free, 80 cars
10:00 a.m. to 4:30 p.m.
Get inspired by stories about rural getaways, hiking adventures, onsen hopping, and local cuisine. Find out more about the unique charm of Gunma in our comprehensive articles, guides, and itineraries.View more