| Long Marsh | Mason, WA | 1.9 miles | NW |
| McCaslin Marsh | Kitsap, WA | 6.7 miles | NE |
| Morgan Marsh | Kitsap, WA | 7.1 miles | NW |
| The Peat Bog | Mason, WA | 8 miles | SW |
| Lilliwaup Swamp | Mason, WA | 14.4 miles | NW |
| Winchester Swamp | Pierce, WA | 15.5 miles | SE |
| Mint Marsh | Mason, WA | 16.1 miles | NW |
| Deer Meadow | Mason, WA | 17.2 miles | SW |
| Farrell Marsh | Pierce, WA | 23.5 miles | SE |
| South Tacoma Swamp | Pierce, WA | 23.9 miles | SE |
| Crawford Marsh | Pierce, WA | 25.3 miles | SE |
| Park Marsh | Pierce, WA | 25.5 miles | SE |
| Elliot Marsh | Pierce, WA | 25.6 miles | SE |
| Edmond Marsh | Pierce, WA | 26 miles | SE |
| Hanner Marsh | Pierce, WA | 26.1 miles | SE |
| Owens Marsh | Pierce, WA | 26.2 miles | SE |
| MacKay Marsh | Pierce, WA | 26.5 miles | SE |
| Kennedy Marsh | Pierce, WA | 28.1 miles | SE |
| Cranberry Marsh | Mason, WA | 28.2 miles | SW |
| Wright Marsh | Pierce, WA | 28.5 miles | SE |
| Shannon Marsh | Pierce, WA | 28.6 miles | SE |
| Kinsey Marsh | Pierce, WA | 28.7 miles | SE |
| Ronald Bog | King, WA | 32.9 miles | NE |
| Deckerville Swamp | Mason, WA | 33.3 miles | SW |
| Halverson Marsh | Pierce, WA | 33.5 miles | SE |
| Brandenburg Marsh | Pierce, WA | 33.5 miles | SE |
| Denton Marsh | Pierce, WA | 34.2 miles | SE |
| Mooney Swamp | King, WA | 37.4 miles | SE |
| Grays Marsh | Clallam, WA | 47.3 miles | NW |
| Parsnip Swamp | Thurston, WA | 47.4 miles | SE |
| Bear Swamp | King, WA | 48.3 miles | SE |
| Harts Swamp | King, WA | 49.2 miles | NE |
| Kimball Creek Swamp | King, WA | 49.4 miles | NE |
| Trestle Swamp | Snohomish, WA | 50.2 miles | NE |
| Roths Swamp | Snohomish, WA | 50.6 miles | NE |
| Johnsons Swamp | Snohomish, WA | 51.2 miles | NE |
| Metcalf Marsh | King, WA | 53.7 miles | NE |
| Waterloo Marsh | Island, WA | 58.2 miles | NE |
| Miller Swamp | Lewis, WA | 59.6 miles | SW |
| Beljica Meadows Lake | Pierce, WA | 62.8 miles | SE |
| Cranberry Marsh | San Juan, WA | 68.1 miles | NE |
| North Fork Swamp | Lewis, WA | 69.2 miles | SE |
| Old Channel | Skagit, WA | 71.4 miles | NE |
| Olympia Marsh | Skagit, WA | 75.8 miles | NE |
| Stella Swamp | Skagit, WA | 78.6 miles | NE |
| Castle Creek Marsh | Cowlitz, WA | 87.5 miles | SE |
| Cranberry Marsh | Pacific, WA | 91.5 miles | SW |
| Goat Marsh | Cowlitz, WA | 92.7 miles | SE |
| Cranberry Marsh | Pacific, WA | 94.7 miles | SW |
| Musto Marsh | Whatcom, WA | 94.8 miles | NE |
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