Map/Lakes/Southern & Central Ontario
Gem Lake
Surface area
12 ac5 ha
Max depth
45 ft13.7 m
Mean depth
12 ft3.7 m
Water type
Cold-water
Mgmt zone
FMZ 15
Shoreline
0.6 mi1.0 km
Depth map
Available
Gem Lake is the 3431st-largest of 4,097 named lakes in Southern & Central Ontario, with 0.6 miles of charted shoreline. Its 45 ft maximum depth is greater than 60% of depth-surveyed lakes in the region.
Fish species
From MNRF aquatic resource surveys.
Also present: Fathead Minnow, Northern Redbelly Dace
Stocked: Brook 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 | Brook Trout | 776 |
| 2023 | Brook Trout | 800 |
| 2021 | Brook Trout | 750 |
| 2019 | Brook Trout | 500 |
| 2017 | Brook Trout | 500 |
| 2016 | Brook Trout | 1,000 |
Similar water
Same region, overlapping species, comparable size.
- Indian Lake2 shared species · 12 ac
- Spring Lake2 shared species · 12 ac
- Gling Lake2 shared species · 12 ac
- Beeches Lake2 shared species · 12 ac
- Marshall Lake2 shared species · 11 ac
Nearby lakes
- Sandy Lake0.6 mi · species data
- Pen Lake1.7 mi · species data
- Aubrey Lake1.7 mi · species data
- Rock Lake2.1 mi · species data
- Rosepond Lake2.9 mi · species data
- Prottler Lake2.7 mi · species data