Mason City, Illinois — Nature Reserves
Reserves Near Mason City, Illinois
Nearest Reserves by Distance
| # | Reserve | Distance |
|---|---|---|
| 1. | Upper Mississippi Conservation Area | 85.9 mi. |
| 2. | Lindsay Wilderness Area | 115.1 mi. |
| 3. | Antoine LeClaires Reservation | 131.6 mi. |
| 4. | Waterfall Glen County Forest Preserve | 136.5 mi. |
| 5. | FERMI National Accelerator Laboratory (historical) | 136.9 mi. |
| 6. | Argonne National Laboratory Reservation | 137.4 mi. |
| 7. | East Branch Forest Preserve | 146.3 mi. |
| 8. | Lib Forest Preserve | 147.5 mi. |
| 9. | Roland Olson County Forest Preserve | 156.9 mi. |
| 10. | Kinnikinnick Creek Nature Preserve | 158.3 mi. |
Reserve Locations