| Mitsuishi River (Mitsuishi-gawa) | |
| 三石川 | |
| River | |
| Country | Japan |
|---|---|
| State | Hokkaidō |
| Region | Hidaka |
| District | Hidaka |
| Municipality | Shinhidaka |
| Source | Hidaka Mountains |
| - location | Shinhidaka, Hokkaidō, Japan |
| - elevation | 280 m (919 ft) |
| - coordinates | |
| Mouth | Pacific Ocean |
| - location | Shinhidaka, Hokkaidō, Japan |
| - elevation | 0 m (0 ft) |
| - coordinates | |
Mitsuishi River (三石川 Mitsuishi-gawa) is a river in Hokkaidō, Japan.
The Mitsuishi River rises in the Hidaka Mountains and flows roughly south to southwest. The river flows into a resivoir at the Mitsuishi Dam. It then continues until it reaches the Pacific Ocean at Mitsuishi in Shinhidaka, Hokkaidō.[1]