| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wallowa River |  | 2,460,488,704 | 1,371 | Grande Ronde River | 89,000 | 45.7253000000 | -117.7860000000 | Map | |||
| Wenaha River |  | 766,636,416 | Grande Ronde River | 34,800 | 45.9456000000 | -117.4520000000 | Map | ||||
| Lookingglass Creek | Grande Ronde River | 45.7068000000 | -117.8420000000 | Map | |||||||
| Catherine Creek |  | 1,266,504,192 | Grande Ronde River | 52,100 | 45.3136000000 | -117.8720000000 | Map |