| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Kachess River | 167,000,000 | 1,480 | Yakima River | 8,000 | 47.2517000000 | -121.1990000000 | Map | ||||
| Naches River |  | 1,786 | Yakima River | 121,000 | 46.6306000000 | -120.5140000000 | Map | ||||
| Teanaway River | Yakima River | 47.1669000000 | -120.8360000000 | Map | |||||||
| Amon Creek |  | 161,200,864 | Yakima River | 21,000 | 46.2472000000 | -119.2610000000 | Map | ||||
| Cle Elum River |  | 574,000,000 | Yakima River | 45,000 | 47.1769000000 | -120.9970000000 | Map |