| Glen Burnie Bog (historical) | Anne Arundel, MD | 26.4 miles | SE |
| Black Marsh | Baltimore, MD | 29.9 miles | SE |
| Hines Pond Bog | Anne Arundel, MD | 31.7 miles | SE |
| Tripcellar Swamp | Harford, MD | 31.9 miles | SE |
| Great Heron Wetlands | Frederick, MD | 31.9 miles | SW |
| Island Marshes | Prince George's, MD | 32.3 miles | SE |
| Knowles Marshes | Prince George's, MD | 33.1 miles | SE |
| Main Creek Bog | Anne Arundel, MD | 33.3 miles | SE |
| Cockeys Creek Bog | Anne Arundel, MD | 33.3 miles | SE |
| Fresh Pond Bog | Anne Arundel, MD | 34.2 miles | SE |
| Gumbottom Bog | Anne Arundel, MD | 34.3 miles | SE |
| Blackhole Creek Bog | Anne Arundel, MD | 34.3 miles | SE |
| Shady Pond Bog | Anne Arundel, MD | 34.6 miles | SE |
| South Grays Creek Bog | Anne Arundel, MD | 34.6 miles | SE |
| Sullivans Cove Bog | Anne Arundel, MD | 34.9 miles | SE |
| North Grays Creek Bog | Anne Arundel, MD | 34.9 miles | SE |
| Dill Road Bog | Anne Arundel, MD | 34.9 miles | SE |
| Eagle Hill Bog | Anne Arundel, MD | 34.9 miles | SE |
| Cypress Creek Savannah Bog | Anne Arundel, MD | 34.9 miles | SE |
| Cypress Creek Bog | Anne Arundel, MD | 35 miles | SE |
| Deep Ditch Bog | Anne Arundel, MD | 36.3 miles | SE |
| South River Headwaters Marsh | Anne Arundel, MD | 39 miles | SE |
| Saint George Barber Marsh | Anne Arundel, MD | 39.9 miles | SE |
| Big Marsh | Kent, MD | 39.9 miles | SE |
| Broad Creek Marsh | Anne Arundel, MD | 40 miles | SE |
| Flat Creek Marsh | Anne Arundel, MD | 40.9 miles | SE |
| Gut Marsh | Kent, MD | 42.3 miles | SE |
| Beards Creek Marsh | Anne Arundel, MD | 42.5 miles | SE |
| Yapp Marsh | Kent, MD | 42.9 miles | SE |
| Glebe Creek Marsh | Anne Arundel, MD | 44.1 miles | SE |
| Long Point Marsh | Anne Arundel, MD | 45.3 miles | SE |
| River Club Marsh | Anne Arundel, MD | 45.5 miles | SE |
| Sellman Creek Marsh | Anne Arundel, MD | 45.6 miles | SE |
| Holly Hills Marsh | Anne Arundel, MD | 45.7 miles | SE |
| Cypress Bog | Anne Arundel, MD | 45.8 miles | SE |
| Bear Neck Marsh | Anne Arundel, MD | 45.9 miles | SE |
| Pasture Run Marsh | Anne Arundel, MD | 45.9 miles | SE |
| Francis Point Marsh | Anne Arundel, MD | 46 miles | SE |
| White Marsh | Anne Arundel, MD | 46.2 miles | SE |
| North Fork Muddy Creek Marsh | Anne Arundel, MD | 46.3 miles | SE |
| Birds Mill Swamp | Anne Arundel, MD | 46.3 miles | SE |
| Sheephead Cove Marsh | Anne Arundel, MD | 46.4 miles | SE |
| South Fork Muddy Creek Marsh | Anne Arundel, MD | 46.4 miles | SE |
| Fox Creek Marsh | Anne Arundel, MD | 46.5 miles | SE |
| The Mess | Anne Arundel, MD | 46.5 miles | SE |
| Cutover Swamp | Anne Arundel, MD | 46.5 miles | SE |
| Dock Marsh | Anne Arundel, MD | 46.5 miles | SE |
| The Moss | Anne Arundel, MD | 46.5 miles | SE |
| O'Neill Marsh | Anne Arundel, MD | 46.6 miles | SE |
| Fox Marsh | Anne Arundel, MD | 46.7 miles | SE |
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