| Olympia Marsh | Skagit, WA | 2.4 miles | NW |
| Old Channel | Skagit, WA | 8.3 miles | SW |
| Stella Swamp | Skagit, WA | 18.2 miles | NW |
| Musto Marsh | Whatcom, WA | 19.3 miles | NE |
| Waterloo Marsh | Island, WA | 21.8 miles | SW |
| Cranberry Marsh | San Juan, WA | 23.9 miles | SW |
| Pangborn Lake | Whatcom, WA | 34.6 miles | NW |
| Grays Marsh | Clallam, WA | 42.3 miles | SW |
| Ronald Bog | King, WA | 50.5 miles | SE |
| Johnsons Swamp | Snohomish, WA | 51.2 miles | SE |
| Trestle Swamp | Snohomish, WA | 52.2 miles | SE |
| Harts Swamp | King, WA | 52.4 miles | SE |
| Roths Swamp | Snohomish, WA | 52.6 miles | SE |
| Metcalf Marsh | King, WA | 66.5 miles | SE |
| McCaslin Marsh | Kitsap, WA | 69.6 miles | SW |
| Morgan Marsh | Kitsap, WA | 69.8 miles | SW |
| Kimball Creek Swamp | King, WA | 71.9 miles | SE |
| Long Marsh | Mason, WA | 75.7 miles | SW |
| Lilliwaup Swamp | Mason, WA | 78.7 miles | SW |
| Mint Marsh | Mason, WA | 79.1 miles | SW |
| Winchester Swamp | Pierce, WA | 79.1 miles | SW |
| Cow Creek Meadows | Chelan, WA | 80.3 miles | SE |
| The Peat Bog | Mason, WA | 80.3 miles | SW |
| Mooney Swamp | King, WA | 82.6 miles | SE |
| Deer Meadow | Mason, WA | 84.9 miles | SW |
| South Tacoma Swamp | Pierce, WA | 88.4 miles | SW |
| Owens Marsh | Pierce, WA | 90.6 miles | SW |
| Crawford Marsh | Pierce, WA | 91.2 miles | SW |
| Farrell Marsh | Pierce, WA | 92.6 miles | SW |
| Bear Swamp | King, WA | 93.4 miles | SE |
| Park Marsh | Pierce, WA | 94.4 miles | SW |
| Elliot Marsh | Pierce, WA | 94.7 miles | SW |
| Kinsey Marsh | Pierce, WA | 95.8 miles | SW |
| Hanner Marsh | Pierce, WA | 96.2 miles | SW |
| Kennedy Marsh | Pierce, WA | 96.5 miles | SW |
| MacKay Marsh | Pierce, WA | 96.5 miles | SW |
| Edmond Marsh | Pierce, WA | 96.6 miles | SW |
| Wright Marsh | Pierce, WA | 98.4 miles | SW |
| Shannon Marsh | Pierce, WA | 98.9 miles | SW |
| Cranberry Marsh | Mason, WA | 100.7 miles | SW |
| Deckerville Swamp | Mason, WA | 103.3 miles | SW |
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