Ontario, California — Nature Reserves
Reserves Near Ontario, California
Nearest Reserves by Distance
| # | Reserve | Distance |
|---|---|---|
| 1. | Water Canyon Natural Preserve | 11.3 mi. |
| 2. | Sheep Mountain Wilderness | 11.5 mi. |
| 3. | Cucamonga Wilderness | 12.6 mi. |
| 4. | San Gabriel Wilderness | 23 mi. |
| 5. | Helendale Reservation | 32.5 mi. |
| 6. | Least Tern Natural Preserve | 34.7 mi. |
| 7. | San Mateo Canyon Wilderness | 38.6 mi. |
| 8. | Trestles Wetlands Natural Preserve | 46.9 mi. |
| 9. | San Gorgonio Wilderness | 47.1 mi. |
| 10. | Agua Tibia Wilderness | 58.6 mi. |
Reserve Locations