| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Allen Pond Outlet | 15,902,526 | South Branch Grass River | 44.3269444400 | -75.0102777800 | Map | ||||||
| Moosehead Pond Outlet | 20,383,206 | South Branch Grass River | 44.2858333300 | -74.9641666700 | Map |