| Old Channel | Skagit, WA | 6 miles | SE |
| Stella Swamp | Skagit, WA | 7.2 miles | NW |
| Olympia Marsh | Skagit, WA | 10.8 miles | NE |
| Cranberry Marsh | San Juan, WA | 11.1 miles | SW |
| Waterloo Marsh | Island, WA | 14.8 miles | SW |
| Musto Marsh | Whatcom, WA | 28.7 miles | NE |
| Grays Marsh | Clallam, WA | 32.8 miles | SW |
| Pangborn Lake | Whatcom, WA | 36.5 miles | NE |
| Ronald Bog | King, WA | 52.4 miles | SE |
| Johnsons Swamp | Snohomish, WA | 57.7 miles | SE |
| Trestle Swamp | Snohomish, WA | 58.5 miles | SE |
| Harts Swamp | King, WA | 58.6 miles | SE |
| Roths Swamp | Snohomish, WA | 59.1 miles | SE |
| Morgan Marsh | Kitsap, WA | 66.2 miles | SW |
| McCaslin Marsh | Kitsap, WA | 66.3 miles | SW |
| Long Marsh | Mason, WA | 72.3 miles | SW |
| Metcalf Marsh | King, WA | 73.1 miles | SE |
| Lilliwaup Swamp | Mason, WA | 73.2 miles | SW |
| Mint Marsh | Mason, WA | 73.4 miles | SW |
| The Peat Bog | Mason, WA | 76 miles | SW |
| Kimball Creek Swamp | King, WA | 77.5 miles | SE |
| Winchester Swamp | Pierce, WA | 78.5 miles | SE |
| Deer Meadow | Mason, WA | 79.3 miles | SW |
| Mooney Swamp | King, WA | 85.5 miles | SE |
| South Tacoma Swamp | Pierce, WA | 88.4 miles | SE |
| Owens Marsh | Pierce, WA | 90.8 miles | SE |
| Crawford Marsh | Pierce, WA | 91.1 miles | SE |
| Farrell Marsh | Pierce, WA | 91.9 miles | SE |
| Cow Creek Meadows | Chelan, WA | 92.7 miles | SE |
| Park Marsh | Pierce, WA | 93.8 miles | SE |
| Elliot Marsh | Pierce, WA | 94.1 miles | SE |
| Hanner Marsh | Pierce, WA | 95.4 miles | SE |
| Cranberry Marsh | Mason, WA | 95.4 miles | SW |
| Edmond Marsh | Pierce, WA | 95.7 miles | SW |
| Kinsey Marsh | Pierce, WA | 95.7 miles | SE |
| MacKay Marsh | Pierce, WA | 95.8 miles | SE |
| Kennedy Marsh | Pierce, WA | 96.1 miles | SE |
| Deckerville Swamp | Mason, WA | 97.1 miles | SW |
| Bear Swamp | King, WA | 97.2 miles | SE |
| Wright Marsh | Pierce, WA | 97.7 miles | SE |
| Shannon Marsh | Pierce, WA | 98.1 miles | SE |
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