Map/Lakes/Southern & Central Ontario
Grindstone Lake
Surface area
411 ac166 ha
Water type
Cold-water
Mgmt zone
FMZ 18
Shoreline
11 mi17 km
Depth map
Available
Grindstone Lake is the 379th-largest of 4,097 named lakes in Southern & Central Ontario, with 11 miles of charted shoreline and 4 islands.
Fish species
From MNRF aquatic resource surveys.
Also present: Bluntnose Minnow, Cisco, Golden Shiner, Pumpkinseed, Splake, White Sucker
Stocked: Rainbow Trout (most recently 2025).
Lodges & operators0
No operators recorded on this lake yet. Know one? It may be listed under a nearby community — browse the map.
Stocking history
MNRF recreational fish stocking recorded for this water.
| Year | Species | Fish stocked |
|---|---|---|
| 2025 | Rainbow Trout | 8,000 |
| 2024 | Rainbow Trout | 9,500 |
| 2023 | Rainbow Trout | 6,920 |
| 2022 | Rainbow Trout | 8,000 |
| 2021 | Rainbow Trout | 8,000 |
| 2020 | Rainbow Trout | 8,000 |
| 2019 | Rainbow Trout | 8,000 |
| 2018 | Rainbow Trout | 9,400 |
| 2017 | Rainbow Trout | 10,100 |
| 2016 | Rainbow Trout | 8,000 |
Similar water
Same region, overlapping species, comparable size.
- Dotty Lake9 shared species · 390 ac
- Farren Lake9 shared species · 434 ac
- Shawenegog Lake9 shared species · 456 ac
- Silver Lake9 shared species · 613 ac
- Crow Lake9 shared species · 1,085 ac
Nearby lakes
- Little Mosque Lake0.9 mi · species data
- Fawn Lake1.0 mi · species data
- South Portage Lake2.0 mi · species data
- Big Lake1.6 mi · species data
- Crooked Lake2.1 mi · species data
- Mosque Lake1.9 mi · species data