Mason City, Iowa — Swamps
Swamps Near Mason City, Iowa
Nearest Swamps by Distance
| # | Swamp | Distance |
|---|---|---|
| 1. | Grass Lake | 25.6 mi. |
| 2. | Michaelsen Marsh | 45.3 mi. |
| 3. | Dismal Swamp | 47 mi. |
| 4. | Spicer Lake | 49.3 mi. |
| 5. | Shea Lake | 50.3 mi. |
| 6. | Impassable Marsh (historical) | 51.3 mi. |
| 7. | Sweet Marsh | 54.1 mi. |
| 8. | Greenwood Marsh | 56.1 mi. |
| 9. | Rutland Marsh | 59.8 mi. |
| 10. | Senn Marsh | 61.1 mi. |
Swamp Locations