| Miller Swamp | Lewis, WA | 13 miles | SW |
| Parsnip Swamp | Thurston, WA | 26.7 miles | NE |
| Denton Marsh | Pierce, WA | 27 miles | NE |
| Brandenburg Marsh | Pierce, WA | 27.5 miles | NE |
| Halverson Marsh | Pierce, WA | 27.9 miles | NE |
| Shannon Marsh | Pierce, WA | 28.9 miles | NE |
| Wright Marsh | Pierce, WA | 29.6 miles | NE |
| Edmond Marsh | Pierce, WA | 30.4 miles | NE |
| MacKay Marsh | Pierce, WA | 30.8 miles | NE |
| Hanner Marsh | Pierce, WA | 31.1 miles | NE |
| Kennedy Marsh | Pierce, WA | 32.2 miles | NE |
| Elliot Marsh | Pierce, WA | 32.9 miles | NE |
| Park Marsh | Pierce, WA | 33.3 miles | NE |
| Kinsey Marsh | Pierce, WA | 33.8 miles | NE |
| Farrell Marsh | Pierce, WA | 34.5 miles | NE |
| Cranberry Marsh | Mason, WA | 37.3 miles | NW |
| Crawford Marsh | Pierce, WA | 37.6 miles | NE |
| Owens Marsh | Pierce, WA | 39 miles | NE |
| South Tacoma Swamp | Pierce, WA | 40.3 miles | NE |
| Deckerville Swamp | Mason, WA | 41.6 miles | NW |
| North Fork Swamp | Lewis, WA | 45.2 miles | SE |
| Castle Creek Marsh | Cowlitz, WA | 46.4 miles | SE |
| Winchester Swamp | Pierce, WA | 47.3 miles | NE |
| Beljica Meadows Lake | Pierce, WA | 48.4 miles | NE |
| The Peat Bog | Mason, WA | 48.5 miles | NW |
| Deer Meadow | Mason, WA | 49.5 miles | NW |
| Goat Marsh | Cowlitz, WA | 50.3 miles | SE |
| Long Marsh | Mason, WA | 50.9 miles | NE |
| Lilliwaup Swamp | Mason, WA | 54 miles | NW |
| Mint Marsh | Mason, WA | 54.8 miles | NW |
| Cranberry Marsh | Pacific, WA | 55.8 miles | SW |
| McCaslin Marsh | Kitsap, WA | 56.7 miles | NE |
| Morgan Marsh | Kitsap, WA | 57 miles | NE |
| Mooney Swamp | King, WA | 57.1 miles | NE |
| Bear Swamp | King, WA | 57.5 miles | NE |
| Cranberry Marsh | Pacific, WA | 58 miles | SW |
| Brallier Swamp | Clatsop, OR | 59.7 miles | SW |
| Burke Lake | Clatsop, OR | 60.6 miles | SW |
| Virginia Lake | Multnomah, OR | 73.6 miles | SE |
| Kimball Creek Swamp | King, WA | 76.3 miles | NE |
| Ronald Bog | King, WA | 77.1 miles | NE |
| Huckleberry Swamp | Yakima, WA | 79.1 miles | SE |
| Cedar Swamp | Yakima, WA | 79.6 miles | SE |
| Holcomb Lake | Washington, OR | 80 miles | SE |
| Mimsi Marsh (not official) | Clark, WA | 80.6 miles | SE |
| Stadleman Swamp | Skamania, WA | 82 miles | SE |
| Metcalf Marsh | King, WA | 83.7 miles | NE |
| Harts Swamp | King, WA | 87.2 miles | NE |
| Trestle Swamp | Snohomish, WA | 88.2 miles | NE |
| Roths Swamp | Snohomish, WA | 88.3 miles | NE |
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