| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cottonwood River (Dease River tributary) | Dease River | 80,000 | 59.0769444444 | -129.6963888889 | Map | ||||||
| Blue River (Dease River tributary) | 1,700,000,000 | Dease River | 130,000 | 59.6931000000 | -128.9640000000 | Map | |||||
| Rapid River (British Columbia) | Dease River | 59.3131000000 | -129.0260000000 | Map |