Grass River Natural Area
| Website: | Grass River Natural Area |
| Map: | Grass River Natural Area |
| Owner: | Antrim County |
| Size: | 1,443 Acres |
| Avg Temp: | (April) 31 F° → 52 F°  |
| Attributes: |    |
Facilities |
Entrance Lat, Lon: 44.90302, -85.22114  |
Neighboring Features |
| Water Bodies |
| Water Courses |
Links |
| Northwestern Michigan Trail Guide |