A multipurpose dam built on the Natsuaburawa River in 1990. Embankment height is 80m, embankment head length is 233m. An observation deck plaza (430m above sea level) was built around the dam lake, and it was named "Onigake Daira" through a public contest. There is a monument with a poem by Kenji Miyazawa, and it is lit up every Saturday night from July to August. The surface of the lake changes its appearance with the seasons, but it is especially beautiful during the seasons of fresh greenery (May to June) and autumn leaves (around mid-October). Best time to see autumn leaves: Mid-October to early November
- Location
- 〒024-0322 Iwasakishinden, Wagacho, Kitakami City, Iwate Prefecture
- Inquiries
- (One company) Kitakami Tourism and Convention Association
Phone number 0197-65-0300
FAX number 0197-88-3002