Map/Lakes/Southern & Central Ontario
Thumb Lake
Surface area
32 ac13 ha
Max depth
36 ft11 m
Mean depth
9 ft2.8 m
Water type
Cold-water
Mgmt zone
FMZ 15
Shoreline
2.2 mi3.5 km
Nearest road
0.4 mi
Depth map
Available
Thumb Lake is the 2331st-largest of 4,097 named lakes in Southern & Central Ontario, with 2.2 miles of charted shoreline and 1 island. Its 36 ft maximum depth is greater than 50% of depth-surveyed lakes in the region.
Fish species
From MNRF aquatic resource surveys.
Also present: Brook Stickleback
Stocked: Brook Trout (most recently 2024).
Lodges & operators0
No operators recorded on this lake yet. Know one? It may be listed under a nearby community — browse the map.
Seasons & limitsFMZ 15
Lake-specific regulations
- Special limit on this water — : Refer to zone-wide seasons and limits · Refer to zone-wide seasons and limits · Live fish may not be used as bait or possessed for use as bait (Thumb Lake - McClintock Twp.)
| Species | Season | Sport licence | Conservation |
|---|---|---|---|
| Brook Trout | Jan. 1 - Sept. 30 | S - 5 | C - 2 |
Compiled from MNRF Recreational Fishing Regulations open data (2026 season, zone-wide rules shown for this lake's species). Regulations change by variation order — confirm with the official FMZ 15 summary before you fish.
Stocking history
MNRF recreational fish stocking recorded for this water.
| Year | Species | Fish stocked |
|---|---|---|
| 2024 | Brook Trout | 1,350 |
| 2022 | Brook Trout | 1,500 |
| 2020 | Brook Trout | 1,500 |
| 2018 | Brook Trout | 1,200 |
| 2016 | Brook Trout | 1,000 |
Similar water
Same region, overlapping species, comparable size.
- Payes Lake2 shared species · 32 ac
- Sward Lake2 shared species · 32 ac
- Oneside Lake2 shared species · 34 ac
- Otherside Lake2 shared species · 30 ac
- Croker Lake2 shared species · 30 ac
Nearby lakes
- Lumber Lake0.6 mi · species data
- Lucy Lake1.0 mi · species data
- Bright Lake1.4 mi · species data
- Niger Lake1.7 mi · species data
- Samlet Lake2.5 mi · species data
- Park Lake2.4 mi · species data