Hidden Grindstone Falls
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| Location | 79°53'14.914"W 43°19'42.046"N |
| Park | |
| River | Tributary of Grindstone Creek |
| Form | Classic Plunge |
| Flow | Seasonal |
| Crest Restriction : Access | None : Unknown |
| Foot Restriction : Access | None : Unknown |
| Height : Width (m) | 8.00 : 1.50 |
| Height : Width (ft) | 26 : 4 |
| Authority / Owner | Hamilton Conservation Authority |
