| Rock Creek | Whitman, WA | 3.9 miles | NE |
| Union Flat Creek | Whitman, ID | 3.9 miles | SE |
| Union Flat Creek | Whitman, WA | 3.9 miles | SE |
| Willow Creek | Whitman, WA | 8.1 miles | SW |
| Rebel Flat Creek | Whitman, WA | 10.1 miles | NE |
| Cow Creek | Adams, WA | 11.4 miles | SW |
| Downing Creek | Whitman, WA | 13.3 miles | NE |
| McElroy Creek | Adams, WA | 13.8 miles | NE |
| Cherry Creek | Whitman, WA | 14.4 miles | NE |
| Imbler Creek | Whitman, WA | 14.5 miles | NE |
| Mud Flat Creek | Whitman, WA | 14.7 miles | SE |
| Coldwater Creek | Whitman, WA | 15.7 miles | NE |
| Packer Creek | Whitman, WA | 15.7 miles | NE |
| Little Alkali Flat Creek | Whitman, WA | 16.1 miles | SE |
| Cottonwood Creek | Whitman, WA | 18.5 miles | NE |
| East Fork Downing Creek | Whitman, WA | 18.7 miles | NE |
| Lugenbeal Creek | Adams, WA | 19.1 miles | NW |
| Little Valley Creek | Whitman, WA | 19.4 miles | NE |
| Penawawa Creek | Whitman, WA | 19.4 miles | SE |
| Kamiache Creek | Whitman, WA | 20.2 miles | NE |
| Deadman Creek | Garfield, WA | 20.3 miles | SE |
| Meadow Creek | Garfield, WA | 21.2 miles | SE |
| Little Penawawa Creek | Whitman, WA | 21.7 miles | SE |
| Frog Creek | Whitman, WA | 21.8 miles | SE |
| Alkali Flat Creek | Whitman, WA | 21.8 miles | SW |
| Palouse River | Franklin, ID | 22.8 miles | SW |
| Palouse River | Franklin, WA | 22.8 miles | SW |
| Pleasant Valley Creek | Whitman, WA | 23 miles | NE |
| Tucannon River | Columbia, WA | 24.1 miles | SW |
| Goose Creek | Whitman, WA | 25 miles | SE |
| Snyder Slough | Whitman, WA | 25.7 miles | NE |
| Pataha Creek | Columbia, WA | 26.1 miles | SE |
| Kellogg Creek | Columbia, WA | 26.2 miles | SW |
| Casey Creek | Garfield, WA | 27.4 miles | SE |
| Willow Creek | Columbia, WA | 27.6 miles | SE |
| Dry Creek | Whitman, WA | 27.7 miles | NE |
| Little Almota Creek | Whitman, WA | 28.1 miles | SE |
| Negro Creek | Lincoln, WA | 28.1 miles | NW |
| Almota Creek | Whitman, WA | 28.2 miles | SE |
| North Deadman Creek | Garfield, WA | 28.3 miles | SE |
| South Deadman Creek | Garfield, WA | 28.3 miles | SE |
| Weimer Creek | Garfield, WA | 28.3 miles | SE |
| Negro Creek | Whitman, WA | 29.2 miles | NE |
| Pine Creek | Whitman, ID | 29.5 miles | NE |
| Pine Creek | Whitman, WA | 29.5 miles | NE |
| South Fork Palouse River | Whitman, ID | 29.9 miles | NE |
| South Fork Palouse River | Whitman, WA | 29.9 miles | NE |
| Spring Flat Creek | Whitman, WA | 29.9 miles | SE |
| South Fork Palouse River | Latah, ID | 29.9 miles | NE |
| South Fork Palouse River | Latah, WA | 29.9 miles | NE |
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