A dam lake whose construction began in 1942 as a water source for farmland and was completed in 1961. You can also tour the dam facilities by making a reservation in advance.
- Location
- 67 Toyosawa Kita Toyosawa National Forest, Hanamaki City, Iwate Prefecture 025-0251
- Inquiries
- Hanamaki Regional Promotion Bureau Toyosawa Dam Management Office
Phone number 0198-25-2330