| Burke Lake | Clatsop, OR | 27.5 miles | SW |
| Brallier Swamp | Clatsop, OR | 27.6 miles | SW |
| Miller Swamp | Lewis, WA | 29 miles | NE |
| Cranberry Marsh | Pacific, WA | 33.1 miles | NW |
| Cranberry Marsh | Pacific, WA | 33.4 miles | NW |
| Virginia Lake | Multnomah, OR | 45.5 miles | SE |
| Holcomb Lake | Washington, OR | 50.2 miles | SE |
| Goat Marsh | Cowlitz, WA | 51.9 miles | SE |
| Castle Creek Marsh | Cowlitz, WA | 52.4 miles | NE |
| Mimsi Marsh (not official) | Clark, WA | 58.5 miles | SE |
| Parsnip Swamp | Thurston, WA | 62.2 miles | NE |
| Aders Sump | Yamhill, OR | 63.6 miles | SE |
| Denton Marsh | Pierce, WA | 66.8 miles | NE |
| Brandenburg Marsh | Pierce, WA | 67.3 miles | NE |
| Tustin Lake | Yamhill, OR | 67.7 miles | SE |
| Halverson Marsh | Pierce, WA | 67.7 miles | NE |
| Cranberry Marsh | Mason, WA | 68.1 miles | NE |
| Deckerville Swamp | Mason, WA | 69.1 miles | NW |
| Shannon Marsh | Pierce, WA | 69.2 miles | NE |
| Wright Marsh | Pierce, WA | 69.9 miles | NE |
| North Fork Swamp | Lewis, WA | 70.6 miles | NE |
| Edmond Marsh | Pierce, WA | 70.8 miles | NE |
| MacKay Marsh | Pierce, WA | 71.2 miles | NE |
| Hanner Marsh | Pierce, WA | 71.5 miles | NE |
| Kennedy Marsh | Pierce, WA | 72.5 miles | NE |
| Elliot Marsh | Pierce, WA | 73.3 miles | NE |
| Park Marsh | Pierce, WA | 73.7 miles | NE |
| Kinsey Marsh | Pierce, WA | 74 miles | NE |
| Farrell Marsh | Pierce, WA | 74.9 miles | NE |
| Crawford Marsh | Pierce, WA | 77.9 miles | NE |
| Beljica Meadows Lake | Pierce, WA | 78.7 miles | NE |
| Owens Marsh | Pierce, WA | 79.3 miles | NE |
| South Tacoma Swamp | Pierce, WA | 80.6 miles | NE |
| Deer Meadow | Mason, WA | 83.5 miles | NE |
| Stadleman Swamp | Skamania, WA | 85.2 miles | SE |
| The Peat Bog | Mason, WA | 85.3 miles | NE |
| Lost Prairie | Lincoln, OR | 86 miles | SW |
| Jeeter Prairie | Lincoln, OR | 86.1 miles | SW |
| Winchester Swamp | Pierce, WA | 87.6 miles | NE |
| Deer Meadows | Clackamas, OR | 88.8 miles | SE |
| Long Marsh | Mason, WA | 89 miles | NE |
| Lilliwaup Swamp | Mason, WA | 89.1 miles | NE |
| Mint Marsh | Mason, WA | 89.4 miles | NE |
| Cedar Swamp | Skamania, WA | 90.4 miles | SE |
| Bear Swamp | King, WA | 94.9 miles | NE |
| McCaslin Marsh | Kitsap, WA | 95 miles | NE |
| Morgan Marsh | Kitsap, WA | 95.1 miles | NE |
| Mooney Swamp | King, WA | 96.5 miles | NE |
| Huckleberry Swamp | Yakima, WA | 97.4 miles | NE |
| Cedar Swamp | Yakima, WA | 98.2 miles | NE |
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