| Attribute | Ogawara × | Hachiro × |
|---|---|---|
| Bordering countries | ||
| Surface Area (km²) | 62 | 46 |
| Mean Depth (m) | 11.2 | 4 |
| Volume (km³) | 0.71 | 0.14 |
| Shoreline (km) | 67.4 | 70 |
| Catchment Area (km²) | 800 | 823 |
| Residence Time (yr) | 0.8 | 0.08 |
| Frozen Period | Dec-Mar | Dec-Mar |
| Mixing Type | Dimictic | Polymictic |
| Morphogenesis/Dam | - | Remainder of Hachiro-gata (1978) |
| Coordinates | ||
| Latitude | 40.783 | 39.924 |
| Longitude | 141.332 | 140.022 |